ive just put some more koi into my pond and i had some in there before over last couple of days i have noticed that 1 of my koi i got 2 years ago is not eating all it does is swim around the bottom then when i feed them it comes up but does not eat anything the water quality has been checked by the shop where i bought some fish from and they said the water is fine
can anyone suggest to me what it can be cause it was eating fine
hi simon. fish can go without food for 150 days with no ill affect so don,t worry to much.
if the fish is feeling crook it may be the temp change or it has a sore on the mouth or many other things.
leave it a little while and c how it goes but if u see any problems with its scales have it out straight away as this many start a problem with the whole pond.
dont let a shop sell u this and that @ silly prices because some do.
malachite seems to sort most things out.
the thing is you dont no how old the fish is unless u reared it yourself so maybe it ready for the fish pond in the sky.
I'd keep a close eye on it as you said you've introduced new koi and this happened after that. I'd say you brought something into the pond with the new fish. If possible I'd have the poorly koi scraped and scoped for parasites. Otherwise just make sure it doesn't get any worse and if other fish get ill then you need to treat them.