found out my air pump went out... also lost my bi color angel:( almost lost all my fish but seen the bi color dead this morning did all my tests again, than really looked at my fish they seemed like they could'nt breath so looked around air pump had gone out...so I just put the air tool thing on the powerhead to put air in the water...prayed for the best when I went to work...came home to all the rest of my happy and swimmin all over the place fish soo sad for my cleaner and bi color tho:(