why would my tank go from a steady .25 ppm ammonia to 0? that really concerns me ...
i have been doing daily 40% waterchanges since my ammonia got up to 1ppm ... should i keep the same amount and frequency?
40 gallon - Misc fish
15 gallon - Axolotl
5 gallon - Betta and ADF
20 long - Hatchling turtles and corydoras.
Soon to change I am sure