finfayce
Fish Addict
- Joined
- Oct 10, 2018
- Messages
- 905
- Reaction score
- 320
i have a 20 gallon tank with about 16-20 guppies of all ages,2 catfish and 2 plecostemus. a few days after i do a75-80% eater change the water smells bad. i have an internal filter rated to handle 40 gallons and a UV sterilizer. on hand i have Prime, Accuclear,Fluval biological cleaner. i usually use the Fluval because it sounds like the least potent chemical. anybody have an answer?