Ok so I've gotten my ammonia test kit and tested it 3 days ago. The ammonia was at 2.0ppm ( yikes ). I've done two water changes since and when i woke up this morning, i'm at 0 ppm
. If it keeps below 0 and my water stays clear, can i get 3 more fish for my tank? I have one lone goldfish in a 55 gallon tank atm. He's so lonely, i named him felix, i guess hes a guy, have no clue about fish and sex. Hes been alive through the deaths of all his brothers ( all 8 of them ). Ive tried to keep the tank as stable as possible. Im wanting a Pleco and 2 Koi sub varieties of fish, thats all that will be in the 55 gallon tank.