Your Pictus Catfish Vet-Prep Sheet
Finfern honest freshwater care · finfern.com Pictus Catfish — Vet-Prep Sheet
🔍 Find an aquatic / fish vet — before you need one
- Search the WAVMA aquatic-vet finder (the World Aquatic Veterinary Medical Association) — or search "aquatic / fish / exotics vet near me".
- Call ahead and ask the key question: "Do you treat fish?" Few vets do — and ask the exam fee while you're on the phone.
- Find and save one now, while things are calm — not in the middle of a crisis.
📇 Fill this in now — before the crisis
Two minutes now saves ten in a panic. Print it and keep it by the tank.
🚨 Is this an emergency now?
Act promptly — starting with a water test — if you notice any of these:
- Fish gasping at the surface, sudden hiding, clamped fins or loss of appetite: stop feeding, test the water immediately (ammonia, nitrite, nitrate) and do a partial water change — as a scaleless fish it shows water problems fast.
- Any detectable ammonia or nitrite (should be 0), or creeping high nitrate: increase water changes and check that the tank is fully cycled and not overstocked/overfed.
- White salt-grain spots (ich/white spot) or fuzzy patches on skin: act promptly, but treat as a SCALELESS fish — avoid copper and consider reduced-dose meds; verify the product is safe for scaleless catfish, and seek advice from an aquatic vet or trusted fish source before dosing.
- Reddened skin, cuts or torn barbels: check for sharp decor, rough substrate or a net injury from those locking spines, and improve water quality while it heals.
- A visibly bloated, sausage belly (not just rounded): you're overfeeding — cut back portions and frequency.
- None of this is a diagnosis — if a fish is clearly unwell or declining, test the water first and consult an aquatic vet or an experienced fishkeeping community.
When in doubt, a vet call is never wrong — most issues are reversible if caught early.
🚗 On the way / while you wait
✅ Do
- Test your water NOW — ammonia, nitrite, nitrate, pH and temperature — and correct the obvious (a big source of trouble is ammonia / nitrite).
- Keep the fish in its own stable, dechlorinated tank water.
- Move it to a hospital / quarantine tank if you already have one set up.
- Keep the tank calm and dimly lit — stress makes almost everything worse.
⛔ Don’t
- Don’t tip in OTC, aquarium-shop or forum “cures” blindly — many are harmful or just mask the real problem.
- Don’t make a big sudden water change or swing the parameters.
- Don’t add salt or medication without knowing the cause.
🎒 What to bring
- A recent water-test result — ammonia, nitrite, nitrate, pH and temperature. Water quality is the root of most fish illness and the first thing a fish vet asks about.
- Clear photos and a short video — it may not show the behaviour or symptom in the clinic.
- A note of your setup and exactly what — and how often — you feed.
- Only if the vet advises transporting the fish: the fish in a bag or tub of its OWN tank water.
🗣️ What to tell the vet
A general vet may not know this species. Come ready to explain its correct care:
- Temperature
- 22-26 °C (72-79 °F). SeriouslyFish gives 22-25 °C; Aquarium Co-Op 22-26 °C.
- pH
- Soft and slightly acidic is ideal — wild-accurate SeriouslyFish range is pH 5.8-6.8. They adapt to neutral, so anywhere in roughly pH 6.0-7.5 is workable if it is STABLE; avoid hard alkaline water and sudden pH swings.
- Hardness
- Soft to moderately hard. SeriouslyFish lists about 1-15 dGH; keep it in the soft-to-medium range and, above all, stable.
- Minimum tank
- Keeper-facing minimum for a small group is a 4-foot (120 cm) tank of roughly 240 litres / ~64 US gallons (SeriouslyFish gives a 120 x 45 x 45 cm / ~243 L footprint). Bigger-is-better reality: these are tireless, fast swimmers that shoal, so length and floor space matter more than a tall column — a 5-6 foot tank suits a proper group of 5-6+ far better, and each extra fish wants meaningful added space (community guides scale to 55 US gal / ~208 L for the first fish and up from there). Think swimming runway, not gallons on a box.
- Filtration & flow
- Gentle to moderate flow with well-oxygenated, spotless water. As a scaleless fish it is unusually sensitive to poor quality and to medications, so aim for strong filtration, low nitrate and gentle current rather than a raging torrent.
- Diet
- Omnivorous but meat-leaning micropredator/scavenger. Takes sinking dried foods readily plus live/frozen bloodworm, Tubifex, small earthworms and brine shrimp.
- Tankmates / temperament
- Peaceful toward similar-sized tankmates but a genuine predator — it will eat anything small enough to fit in its mouth. Non-aggressive to equals; extremely active and "frisky" once it smells food.
⚕️ Most fish illness starts with water quality, not infection — bring a recent water test; it's the first thing a good fish vet will ask about. Fish medicine is specialised and few vets treat fish, so call ahead. Many aquarium-shop and OTC 'cures' are harmful or simply mask the real problem, so tell the vet exactly what (if anything) you’ve already added, and treat a sick fish in a separate hospital tank rather than dosing the whole display.
Then note which of the warning signs (above) you are seeing, when they started, and whether they are getting worse.
❓ Questions to ask
- Do you treat fish? If not, can you refer me to a vet who does?
- What are the likely causes — and could my water or setup be the cause?
- What is the treatment plan, the likely cost, and what should I watch for at home?
- How do I prevent this from happening again?