My LFS verified the ammonia level. The tank is 3months old. The livestock looks good but my toadstool seemed to get shorter. It is very large and it seems like he shurnk about .5" in height. I am not sure if it matters but the toadstool is giving off like a skin, it looks like it is sheding. Everything else looks good. I did add the calupera and a non living rock to hold the calupera down. No idea why my calupera looks funny either.