I have a 20L gallon tank and I dont know what im doin wrong but every time I do the 20% water change the ammonia goes up to 1, I also put ammo lock and I do water changes every week.
4 years ago I set up a tank, and I didnt had any problems, I had 8 fishes, completely healthy, but 2 years ago I moved so I gave all my fishes.
A month ago I started to set up the tank again with only one fish, all the equipment is new, except the tank. I used to have a skilter and an aditional filer but now I have a skimmer and a filter for a 20 g tank.
4 years ago I set up a tank, and I didnt had any problems, I had 8 fishes, completely healthy, but 2 years ago I moved so I gave all my fishes.
A month ago I started to set up the tank again with only one fish, all the equipment is new, except the tank. I used to have a skilter and an aditional filer but now I have a skimmer and a filter for a 20 g tank.