I have bought a Shovel Nose catfish (10cms) a month ago.... he was eating very fine... i used to feed earthworms, blood worms and chicken pieces....
its been seven days it started avoiding the food...
i have placed it in 180 gallon tank
Tank mates : 10cms - Redtail catfish
it doesnt take pellets when i tried twice, and this pic was taken last week when it took feed.... now its belly became normal... help me out
From your very limited info above the only red flag is the chicken. I'd recommend cutting it out, as any non-aquatic feed.
The following is long but will help us troubleshoot your situation. We may only need one or two of these to figure it out but a priori we don't know which ones. The better you answer, the better we could potentially help. If you don't know an answer, you could say:
-- "I don't know (IDK)", or
-- "IDK what it means", or
-- "I don't think this is relevant".
Water Parameters
by a liquid test tube kit, such as the API freshwater master kit:
-- ammonia, ppm
-- nitrite, ppm
-- nitrate, ppm (before and after water change)
-- pH of tank and tap (before and after water change)
-- is the pH steady?
-- dissolved oxygen (DO) or description of aeration and stirring
-- temperature
-- is the temperature steady? (no significant swings?)
-- carbonate and general hardness, KH and GH, by a liquid test
-- TDS, ppm
-- or a general indication of TDS or water hardness and salinity
Water Source and Water Change
-- municipal or private
-- disinfected by chlorine / chloramine or non-disinfected?
-- if disinfected, how is water conditioned before water change?
-- average water changes (WC) on tank:
how much
how often
Tank
-- size
-- length, width, and height
-- time of running
-- if the tank is new:
how long was the tank cycled?
how was it cycled?
Stock (all fish, not just sick ones)
-- what species
-- how many each
-- estimated size of each
-- how long fish in question have been in tank
-- how long tank mates have been in tank
-- tank mate interactions, any aggression?
-- wild caught (wc) or captive bred (cb)
-- dewormed or not
-- treated against other parasites or not
Filtration
-- type: canister, HOB, or sump?
-- size
-- pump flow, gallons or liters per hour?
-- how often cleaned
-- how cleaned
Diet
-- what is the fish fed?
-- how much
-- how often
-- what are the tank mates fed?
Disease Symptoms, etc.
appetite
lethargic
bloated
swimming pattern
spots (where on body)
fuzzy patches (where on body)
excess slime
distorted features
color change
cloudy or swollen eyes
prior health history
-- of fish
-- of tank mates
were fish quarantined before being added to tank?
did the tank experience any previous disease out breaks?
-- what were they?
-- when were they?
medications used
Photos
-- the entire tank
-- close-ups of the fish and problem areas