Oh no really.. ok will stop with the chemical and do more water changes, im not sure why the amonia was so high i gravel vac out half of the water every second weekend. Could it be because i feed them to often or to much? I feed fish flake in the morning and at night i feed a recipe that i got from here it contains liver, ox heart, silverbeet, prawns, calamari, and farex all blended up i also feed this to my turtles. I didnt realise i could do that many water changes so often i assumed this would harm them :oops: thanks i will do another water change when i get home.