Lobophyllia coral care

Lobophyllia corals, sometimes casually referred to as Brain corals or lobed brain corals, are attractive and popular centerpiece reef specimens. But are they hardy? Tolerant? Good for a mixed reef? This article will answer those questions and more about how to care for Lobophyllia coral in a saltwater tank.

Quick facts about Lobophyllia coral care

Here is a quick summary about the Lobophyllia coral care facts to help you get started learning about these attractive LPS corals.

• Genus and species: Lobophyllia hemprichii, L. hawaii, L. corymbosa
• Natural location: Indonesia and Great Barrier Reefs
• Common names: Lobophyllia, Lobos, Brain coral, Lobed brain coral
• Difficulty level: Moderate
• Placement: Sand bed
• Lighting needs: Lower to moderate light (80-120 PAR)
• Water flow needs: Lower to moderate water flow
• Feeding requirements: Mysis shrimp-sized and below
• Special care instructions: Minimize touching to prevent damaging soft tissue
• Category: Large Polyp Stony (LPS) Corals
• Cost: Moderately high
• Minimum tank size: 10-gallon – size of tank probably doesn’t matter

Genus and species

There are many different species of Lobophyllia corals, but the three species you are likely to encounter in the aquarium trade are: Lobophyllia hemprichii, Lobophyllia hataii, and Lobophyillia corymbosa.

There was also a taxonomic reclassification of some Symphyllia genus corals to Lobophyllia (Kelley 2022).

Natural location for Lobo corals in the wild

Most, if not all, of the Lobo corals you see in the aquarium hobby come from either the Great Barrier Reef or Indonesia, where they are collected from the upper reef slopes, or the front of the reef slopes, in both horizontal and vertical orientations (Borneman 2001).

Please keep in mind that even though we described this as the upper reef slopes, that still corresponds to a lower level lighting intensity in your reef tank.

Lobophyllia coral common names

Lobophyllia corals can be found in aquarium stores and online with a few different common names including Lobophyllia, Lobo, Lobos coral, Brain coral, and Lobed brain coral.

Lobos difficulty level

Lobos are generally considered to be a coral type that is moderately difficult to maintain, because the individual results will vary significantly between individual specimens. They have large, fleshy polyps and dense, heavy, bulky skeletons. Since the fleshy polyps extend along the entire surface of the coral, they are difficult to hold without causing soft tissue damage and subsequent infection.

Since Lobos are so prone to soft tissue damage, they often don’t last that long after shipping or handling. However, if the coral was properly collected, carefully shipped and handled from the reef to your tank, they are actually then considered relatively hardy corals.

There are anecdotal reports from those who handle a lot of corals that the Australian-collected individuals tend to survive better.

Why do outcomes vary so much with Lobophyllia?

The variable success rate with Lobophyllia corals is largely due to several factors that can affect their health before and after they reach your aquarium:

• Collection method: Wild-collected specimens are more common than aquacultured ones, but wild Lobos are more likely to experience stress and tissue damage during collection and shipping. Aquacultured Lobos, while less common, often adapt better to aquarium life.
• Shipping and handling: Extended shipping times, rough handling, or exposure to air can cause subtle or overt tissue damage. Even minor injuries can lead to infections or slow declines that may not be obvious at first glance.
• Acclimation protocols: Sudden changes in water chemistry, temperature, or lighting during acclimation can stress Lobos and increase the risk of tissue recession or infection. Gradual acclimation is critical.

How to assess a Lobo at purchase:

• Look for full, inflated polyps with no visible tissue recession or skeleton showing at the edges.
• Healthy coloration (not pale or brown), and no obvious lesions or torn tissue.
• Observe the coral’s response to gentle water movement or touch (if permitted)—a healthy Lobo will retract slightly but not collapse or shed tissue.

Decision framework for selecting and acclimating Lobos:

• Prefer aquacultured or recently imported, well-rested specimens over freshly shipped wild colonies.
• Quarantine or observe new arrivals for at least a week before adding to your display tank to monitor for delayed tissue recession or infection.
• Acclimate slowly to your tank’s lighting, flow, and chemistry to minimize stress.

By understanding these risk factors and carefully selecting and acclimating your Lobophyllia, you can greatly increase your odds of long-term success.

Lobophyllia lighting needs

Lobophyllia corals require low-to-moderate lighting, which I consider to be in the 80-120 PAR range, as a target estimate. Please keep in mind that lighting needs are related to what the specific individual coral piece you acquire is used to, so use the 80-120 PAR range as a guide and consider scaling that up or down gradually, depending on how you observe the coral acclimating to your tank.

Understanding light acclimation: Lobophyllia corals host symbiotic zooxanthellae (algae) in their tissues, which adapt to the light intensity they receive. Sudden increases in light can overwhelm these symbionts, causing bleaching (loss of color and tissue recession). Conversely, too little light can cause browning or stretching as the coral tries to capture more light.

How to acclimate Lobos to light:

• Start your Lobo in a shaded or lower-light area of the tank, especially if you are unsure of its previous lighting conditions.
• Gradually increase light exposure over 1-2 weeks by moving the coral incrementally or adjusting shading screens.
• Monitor for signs of light stress: Excess light—bleaching, tissue retraction, loss of color; Insufficient light—browning, polyp stretching, slow growth.

Adjust placement as needed to keep your Lobo healthy and well-colored.

Lobos water flow needs

Similar to their lighting requirements, Lobos need low to moderate water flow. Too much flow will cause them to keep their soft tissue polyps retracted. Retracted polyps is an adaptive strategy to prevent tearing of the soft tissue, which is a good thing, in the short term. But long-term the coral will wither away if the issue is not addressed.

Why flow matters: Excessive flow can cause tissue tearing and prevent the coral from expanding fully, reducing feeding and increasing infection risk. Insufficient flow allows detritus to settle on the coral, which can lead to tissue irritation or bacterial infection.

How to diagnose and adjust flow:

• Observe polyp extension—healthy Lobos will expand their tissue during the day. Chronic retraction may indicate too much flow.
• Look for detritus buildup on or around the coral—if present, increase gentle, indirect flow.
• Aim for gentle, variable flow that keeps the tissue gently moving but not flapping or compressed.
• Adjust powerhead placement or flow patterns to avoid direct blasts on the coral.

Lobophyllia placement: Where to place lobo corals in a reef tank

The best placement for a Lobophyllia coral is generally on the bottom of the tank, on the sand bed, bottom glass, or lowest rock structure, with space all around them, away from other corals. The rationale for that placement is to try and deliver low-to-moderate lighting and low-to-moderate water flow. If you don’t have sufficiently strong lighting above your reef tank you may need to move them up a bit higher but should start out low first to avoid bleaching.

Another important consideration, when placing Lobos, is to avoid areas where they might fall off of rocks or rocks and corals might fall on them. The large, soft, fleshy polyps are very easily damaged. You may lose the entire colony if it gets crushed by falling live rock.

You want to provide a lot of space around lobo corals that is free from other coral species because they can be aggressive towards other corals, if threatened. Under the cover of darkness, they may release digestive mesenteric filaments to secretly digest neighboring corals while you’re not watching.

To minimize risk: Place Lobos with at least several inches of space between them and other corals, especially those with delicate tissue. Avoid crowding and ensure stable placement to prevent accidental falls or contact.

How to feed Lobophyllia corals

Feeding Lobos is not required, but you will likely have a healthier, faster-growing coral if you do. My own personal rule of thumb is that…if it has a mouth…you should feed it. Lobos have rather large mouths and are capable of eating everything from single-celled phytoplankton, zooplankton (or zooplankton-sized powders), and frozen, thawed mysis shrimp or brine shrimp.

https://youtu.be/95gxcM8Adu4

Lobos will also occasionally snag their own food as it floats by.

Feeding trade-offs and tips:

• Benefits of feeding: Improved growth, better coloration, and faster recovery from stress or injury.
• Risks of overfeeding: Excess food can degrade water quality, leading to algae or bacterial blooms. Always remove uneaten food after feeding.
• When to feed: Lobos often feed more actively at night or when tentacles are extended. Target feeding with a pipette or turkey baster is effective.
• Signs more feeding may be needed: Slow growth, poor polyp inflation, or pale coloration.
• Common mistakes: Using food that is too large, failing to turn off flow during feeding (which can blow food away), or feeding too frequently.

Aggressiveness level: how aggressive are Lobos?

Lobos are considered to be inconsistently aggressive corals. A Lobo’s most deadly method of aggression is by digesting neighboring corals with a mesenteric filament attack under the cover of darkness. A lot of times this aggression goes unnoticed because it happens when you’re sleeping.

You may go to bed one night, thinking the coral is peaceful and wake up to see a ‘burned out’ neighboring coral, unsure what happened.

But one of the other elements that makes it tricky to detect this aggression is that the lobo may actually not be aggressive at all. Sometimes they peacefully coexist in close contact with neighbors, which works out well for all the corals…right up until the time it doesn’t.

What triggers aggression? Aggression can be triggered by crowding, competition for light or flow, or stress from environmental changes. Sometimes, aggression is unpredictable and may occur after long periods of peaceful coexistence.

How to prevent or mitigate aggression:

• Provide generous spacing (at least several inches) between Lobos and other corals.
• Use physical barriers or rockwork to separate aggressive species if needed.
• Regularly observe your tank at night or early morning for signs of mesenteric filament attacks or tissue damage on neighboring corals.
• Remove or relocate affected corals if aggression is observed.

Because aggression can be inconsistent and hard to predict, the best practice is to assume every Lobo colony has the potential to become aggressive and to monitor for early warning signs, such as tissue damage on neighboring corals.

Water parameters and chemistry for keeping Lobos

Lobos don’t have any specific, unique, or odd water parameters or chemistry needs. The usual great reef tank water parameters for LPS corals are appropriate:

• Temperature: 73-84 F, 22-29 C
• pH: 8.1-8.4
• Hardness: 8-12 dkh
• Calcium: 400+ ppm
• Magnesium: 1,300 ppm
• Salinity: 35 g/L

Water parameters are often given as a range, as you can see in the examples above. Please note that having a lot of fluctuation or variability of your water conditions, even within the ideal ranges provided, is generally going to mean bad news for your Lobo corals. The best bet is to peg water parameters somewhere within the ideal range and keep them there.

Why stability matters: Lobophyllia are sensitive to swings in alkalinity, salinity, and temperature. Rapid changes can stress their tissue and symbiotic algae, leading to tissue recession, bleaching, or infection. Automated top-off systems, dosing pumps, and gradual adjustments are helpful for maintaining stability.

Signs of instability: Sudden tissue loss, polyp retraction, or unexplained color changes may indicate parameter swings. Test water regularly and correct issues slowly to avoid further stress.

Check out this article to learn more about the most important reef tank water parameters.

https://youtu.be/ZTp5CAmDXj0

Fragging and coral propagation

Fragging Lobos can be a bit challenging. The large, fleshy polyps, dense skeletal structure, and propensity to get infections when the soft tissue is damaged makes it difficult to propagate this coral.

Lobos are also slow-growing corals, which makes them difficult and expensive as fragging or propagation targets.

Why is fragging risky? Lobophyllia have limited regenerative capacity and large tissue wounds from fragging are slow to heal, increasing the risk of infection or tissue recession. Recovery can take months, and losses are not uncommon if the coral is not healthy to begin with.

When (or if) to frag:

• Only attempt fragging on healthy, well-established colonies with no signs of tissue recession or disease.
• Use a tile saw or dremel tool to saw the skeleton between individual polyps, minimizing tissue tearing.
• Consider antiseptic dips and careful post-fragging care (stable water, low flow, minimal disturbance).
• If in doubt, consider trading or selling whole colonies instead of fragging.

You can learn more about How to Frag Corals in this book.

Similar looking corals

Certain Scolymia, Acans (Micromussa), and Blastomussa corals can share similar appearances with Lobo Brain Corals and may be mislabeled as such. So be on the lookout for such mislabeled cases. And also, consider learning more about the care of those other great corals—because if you like Lobo Brain Corals, you’ll probably like Scolys, Acans, and Blastos, too.

How to tell them apart:

When purchasing, check for polyp size, skeleton shape, and colony structure to help ensure correct identification.

Special care instructions

The most important special care instruction for Lobo corals is to be extremely careful when handling them. Lobophyllia are particularly prone to damage from transit and damage from touching. Always support the coral from underneath, avoid squeezing or pinching the tissue, and minimize handling whenever possible.

Frequently asked questions about Lobophyllia coral care

Here are some fast answers to a few of the frequently asked questions about Lobo Brain Coral care that were not addressed so far.

Corals like Lobos have only two cell layers near the hard stony skeleton, so they are easily damaged even with a relatively moderate or gentle touch (Kelley 2022).

How big do Lobos get?

Lobos are a slowly growing coral type that is found in aquarium shops and online retailers as tiny colonies, less than 1.5 inches across, up to larger individuals that are between 4-6 inches across. Old colonies on a natural reef can grow to be several feet wide, but they are unlikely to come close to that in a reef tank.

Can lobos touch?

Lobo corals should not touch other corals. Lobos can be aggressive towards neighboring corals and may attack them with digestive mesenteric filaments.

You may see anecdotal reports of hobbyists online suggesting they have been successful with Lobos touching, but it is only a matter of time before it becomes problematic. Aggression between coral colonies can be inconsistent and hard to predict. But you should assume every Lobo colony you come across has the capability to become quite aggressive towards neighboring colonies.

Don’t get lulled into a false sense of security by reports of lobos touching without problems. I’m not disputing their report, but rather I’m disputing that the report is a predictor that they won’t have problems in the future.

Is touching always fatal? Not always—sometimes Lobos coexist peacefully for extended periods, but tissue contact increases the risk of aggression or infection. The outcome is unpredictable, so observation and adaptive management are key. If you notice tissue damage or signs of stress, separate the corals promptly.

References

Borneman, Eric. Aquarium Corals. Microcosm Ltd. 2001.

Kelley, Russell. “Genus Lobophyllia: Let’s Look at Lobos…”. Coral Magazine Volume 19 Number 2. March/April 2022 page 68.

Kelley, Russell. “Genus Lobophyllia, Part II.” Coral Magazine Volume 19 Number 3. May/June 2022 page 72.

Ulrich III, Albert B. How to Frag Corals. Harleysville, PA. SaltwaterAquariumBlog Publishing. 2015.