Tasmanian ruffe

Where they come from

Tasmanian ruffe (Tubbia tasmanica) are a cold-temperate marine fish from southern Australia and around Tasmania. Think rocky reef edges, kelp, and cooler coastal water rather than tropical coral reef stuff.

They show up in the hobby rarely, and when they do its usually because someone is set up for temperate marines already. If you are coming from tropical reefkeeping, this fish will feel like a whole different sport.

Setting up their tank

This is an expert fish mostly because of temperature and stability. You are looking at a chilled marine system, lots of oxygen, and high water quality with strong export. If you cut corners here, they tell you fast.

Ive had the best luck keeping them in the low-to-mid teens C (roughly 55-60F) with a chiller that can actually hold the line in summer. Stability matters more than chasing an exact number.

• Tank size: bigger is easier. I would not bother under 75-100 gallons for an adult, especially if you want tankmates
• Temperature: chilled temperate range (plan around 55-60F / 13-16C unless you know your collection locale)
• Salinity: normal marine 1.024-1.026, keep it steady
• Flow and oxygen: strong surface agitation, good turnover, and a skimmer that pulls dark
• Aquascape: rockwork with caves and overhangs, plus open lanes to cruise
• Lighting: they do not need reef lighting. Moderate light is fine and helps keep algae manageable

Temperate tanks love to grow nuisance algae if nutrients creep up, and ruffe are messy eaters once you get them on meaty foods. Plan your filtration like you are keeping a predator, not a dainty planktivore.

What to feed them

They are meat-and-seafood fish. Mine took food best once they felt secure, and they really responded to smaller items offered more often rather than one huge meal.

• Frozen mysis and enriched brine (great for getting new fish started)
• Chopped prawn/shrimp, squid, and scallop (small pieces, not big chunks)
• Krill (sparingly, its rich and can foul water fast)
• Marine pellets for carnivores (once they recognize them, handy for consistency)
• Occasional live foods to kickstart feeding: live mysis or small marine/estuary shrimp if you can source safely

A feeding stick is your friend. It keeps food from disappearing into rockwork and lets you target the ruffe if there are faster tankmates. Rinse frozen foods and do smaller portions so you are not turning the tank into soup.

How they behave and who they get along with

Expect a confident, predatory attitude once settled, but they can be shy right after arrival. They like structure to hover near and will claim a favorite cave or ledge. At feeding time they wake up fast.

Tankmate choice is mostly about temperature match and mouth size. If it fits, it is food. If it does not fit, it might still get bullied during feeding.

• Good matches: other temperate, similarly sized fish that are not tiny and not hyper-aggressive (think robust reef-edge species from cool water)
• Use caution: slow, timid fish that will get outcompeted for food
• Avoid: small fish, tiny crustaceans, and anything you would be sad to see swallowed
• Corals/inverts: treat them like a fish-only temperate setup unless you are very sure about compatibility. Many ruffe will harass shrimp and crabs

Breeding tips

Breeding in home aquaria is not something most hobbyists pull off with Tasmanian ruffe. You would likely need a mature pair, seasonal temperature and day-length cues, and a way to handle tiny live foods if larvae are pelagic.

If you are determined, focus on long-term conditioning: varied meaty diet, very stable chilled water, and a calm tank with minimal competition. Even then, dont be surprised if you never see eggs.

Common problems to watch for

Most failures come from warm water, low oxygen, and shipping stress. New arrivals can look fine for a week and then slide if the system is not truly temperate and stable.

• Heat stress: rapid breathing, hanging near the surface, refusing food
• Oxygen issues: worse at night or after heavy feeding, fish look listless or gulp at the surface
• Feeding setbacks: new fish that only picks at food, then loses weight fast
• Parasites after import: flashing, frayed fins, excess slime, cloudy eyes
• Water quality spikes: ammonia/nitrite from heavy meaty feeding, or nitrate creep leading to chronic stress

My practical routine: strong skimming, aggressive mechanical filtration you actually clean, and a steady water change schedule. Watch their body shape more than anything. If the belly starts pinching in, step in early with better food variety and less competition at meals.