I have had my Andinoacara rivulatus for about 7 months and at one point he was one of the biggest and aggressive fish in my tank ( 55 gallon)
About a month or so ago he just stopped eating or ate very little and seems to be very thin and has long stringy poop hanging from him and is now the smallest fish in the tank that also contains
1 Pseudotropheus crabro bumble bee
1 Sciaenochromis fryeri electric blue
1 Epalzeorhynchos bicolor red tail
1 Aulonocara hansbaenschi peacock
2 Tetraodon biocellatus figure 8 puffer
They are all about 3-4 inches long(except the puffers) I treated the tank with parasite guard and removed the carbon from the filters.
I did this treatment about 3 weeks ago and he still is getting thinner and won't eat. Last night i put him in a 10 gallon hospital tank and added the parasite guard and aquarium salt.
Is there anything else i should be doing??? An help would be appreciated