if my tank is no cycling properly and the ammonia levels are high, what should i do with the piranhas i have in that tank? i have a 15 gallon with 5 baby piranhas but the water is always foggy, i do water changes but that might be the problem? i should remove the fish untill it cycles properly right? where should i put them, can i mix tem with my 4-5" redbellies or will they just eat them? i mixed them b4, they got along ok but they were all inshock ( its when i had to set up my 100 gallon) can i have some advice?