Atlantic pomfret

Where they come from

Atlantic pomfret (Brama brama) is an open-ocean fish. You are not dealing with a reef or lagoon species here - this is a pelagic cruiser that spends its life in blue water, moving a lot, following food. You will see them show up across the North Atlantic and into the Mediterranean, usually out over deep water.

Setting up their tank

I will be blunt: keeping an Atlantic pomfret long-term in a home aquarium is a rough match. The problem is not just water quality. Its the combination of adult size, constant swimming, and stress from tight quarters. Most attempts that go south do so because the fish cant cruise and settles into chronic stress.

If you still want to try, think "round, huge, and overfiltered." A long rectangle with hard corners is where you see nose damage and frantic laps. A large oval/round system (or a very large raceway style build) is the friendliest layout for a fish like this.

• Tank footprint: as big as you can realistically provide, with lots of uninterrupted swim space (open water, not rock piles)
• Flow: strong, laminar-ish flow they can lean into, plus calmer areas so they can rest without being blasted
• Filtration: industrial-level protein skimming, oversized mechanical filtration, and a big biofilter (these fish eat heavy and poop heavy)
• Oxygen: aggressive aeration and surface agitation; dissolved oxygen is not negotiable with fast swimmers
• Temperature/salinity: keep stable and matched to the collection location (most end up doing typical temperate marine conditions rather than tropical reef numbers)

For aquascape, go minimal. If you want structure, keep it low and to the edges with rounded surfaces. Hard rock towers in the middle are just something they will eventually slam into during a spook.

What to feed them

They are predators that do best on meaty marine foods. The big trick is getting them reliably eating prepared/frozen without turning your water into soup.

• Staples: chopped marine fish, squid, shrimp, and quality marine carnivore pellets once they recognize them as food
• Treats/variety: silversides or similar whole marine baitfish (not constantly, but useful for conditioning and picky phases)
• Supplements: soak food in a vitamin/HUFA supplement if you are feeding lots of frozen blocks

Feed smaller amounts more often rather than one giant dump. Big single feedings tend to spike ammonia and make the fish sluggish. Two to four feedings a day is more realistic for a high-activity swimmer, especially if its still growing.

How they behave and who they get along with

Expect a nervous, high-speed fish that can go from calm to ballistic in half a second. They are not "interactive" like a triggerfish. They are more like a living torpedo that learns your routine over time.

Tankmates are tricky because anything small becomes food, and anything aggressive turns the pomfret into a stress case. The safest plan is species-only or with other large, calm, open-water compatible fish in a very large system.

• Avoid: slow fancy fish, long-finned fish, small fish, and anything that nips (they will get shredded or they will shred others)
• Be careful with: large tangs, big wrasses, triggers - not because the pomfret cant handle them physically, but because constant chasing ruins it
• Best match: big, mellow fish that ignore each other and can handle heavy feeding and high flow (in huge systems)

Breeding tips

Realistically, you are not breeding Atlantic pomfret in an aquarium. They are open-ocean spawners with pelagic eggs/larvae, and the scale of space, current, and live plankton culture you would need is in public aquarium or research facility territory.

Common problems to watch for

Most problems trace back to stress: too small a tank, not enough oxygen, rough handling, or tankmates that keep it on edge. Once a pelagic fish starts going downhill, it can move fast.

• Collision injuries: scraped nose, split fins, missing scales from panic runs (fix the cause: lighting changes, tank shape, cover, and hiding visual triggers outside the glass)
• Oxygen crash: heavy breathing, hanging at surface, refusing food (increase aeration/flow, clean clogged socks, check skimmer air intake)
• Ammonia/nitrite spikes: often after big feedings or filter maintenance (test often, do big water changes early, and do not over-clean bio media)
• Parasites from wild collection: flukes and other hitchhikers are common in wild pelagic fish (quarantine if you can, and be ready to treat in a controlled setup)
• Refusal to eat: usually stress or unfamiliar food type (dim the lights, reduce traffic around the tank, offer smaller moving pieces on a stick, then transition to frozen/pellet)