I had a tank that started cracking at the end of completing the cycle (fish in and small tank) i planned on upgrading to a 30 gallon after learning the horrible mstake I made but I at this point I had to get one NOW. 5 stores later, the only thing I could find with a stand that would work with my carpet was a 20gallon. Managed to run it for 24 hours with the gravel from old tank. (5 gallon to 20g change here) before it started leaking. Put the fish in and for the moat part gold fish did great pleco did not take the move well and refused to eat. He passed 2 days ago. Goldfish is now stessed out and lethargic. In no point in time of the 2 weeks since the move has my liquid test shown anything. 0s across everything and a ph of 7.5. I did not realize that my filter came with an ammonia removing filter. Is that preventing a cycle and causing stress to my fish?