I have a 35 ltr tank set up, its been running for 3 wks now. After 4 days of it bein set up i added some fish. I have 2 black neons and a platy. I test the water everyday, the ammonia is at 2ppm there are no nitrites and the nitrates are sitting at 5ppm. I have carried out 20% water changes. Today is Tues and on Sun jst passed i changed approx 50% of the water and did a gravel clean ( as advised by my local pet shop) the nitrite did show a reading of 0.25ppm for 1 day last wk then it went back to 0. I jst cannot seem to get the ammonia down
its a fluval u2 filter i have in the tank. The fish seem ok. But i sm worried tht there goin 2 come 2 harm if i cant get the ammonia down. Any advice WILL be greatly appreciated.
P.s once i get the ammonia down to 0 will this mean the tank has cycled?? I have been searching on google for advise but theres a few mixed answers and i really dont know which answer is the best answer. Thank you very much for your help and for taking time out to help me.