I have a fluval C3 filter which i add lava rock instead of the carbon in the carbon compartment and added two piece of the SeaPora poly pad from a cycled tank. At this point should i do a 25% water change, since water test yesterday gave me : Ammonia=0.25ppm, Nitrite =0.5ppm and nitrate=5.0ppm ?? And should i remove one or both pieces of polypad from the filter?? Should then test everyday or every 2 days ?? (Cause i want to make sure not to harm the fishes) And lastly so my fish tank will be cycled when ammonia and nitrite results will be at 0ppm for at least 2 days??
Thank you very much once again!!