S
Skye
Guest
If your snook is a male, he may grow to be 18 inches - even without the other fish, he will be too large for the 55 gallon. The "inch of fish per gallon" rule only works well for fish five inches and under - after that it begins to get exponential.
My recommendation would be to see if a local pet store would buy it from you or possibly exchange it for another fish.
My recommendation would be to see if a local pet store would buy it from you or possibly exchange it for another fish.