So here's my problem:
I feed my fish red flake food so their poo is always red, but today when I looked at my tank I saw brown poo.
I have a snail but my snail's poo doesn't look like the poo I found today.
I've been feeding my snail algae disks and I remove the leftovers.
What is my fish eating?
Is he sick?
Will he be all right?