I was hoping to get some help here for a disaster that is going on in my tank right now. I have a 150 gallon tank that prior to a few days ago was pristine. I did a water change on Sunday and fed the fish in the evening which I admittedly probable fed them a little too much. The next morning the tank was a little hazy so I skipped the feeding for the day. On Tuesday I did a 50% water change and fed them a much smaller amount then normal. On Wednesday the tank was looking worse so I did another another water change in the after noon, when doing this I went pretty low on the tank and my filter stopped. I primed up the filter by running the water through it and proceeded to fill the tank through the filter (eheim 2260). I fed the fish a very small amount again and the tank was looking worse. I tested the water and got 0 nitrites but ammonia was off the charts. I have been adding prime in with the water changes so I am fairly confident that it is now ammonium especially since my sticky seachem testing tag is only reading a small amount of ammonia present. I did another 50% water change in the evening and when I woke up this morning and I can't hardly see into the tank at all. I still have not lost any fish but I am getting really scared at this point. Please help with some ideas on what would be the best way to fix this. I have the eheim filter along with an Aquaclear 110 HOB. The eheim was last cleaned around 3-4 months and can probably use a cleaning but I am nervous about doing so since I think it may make my problem worse by getting rid of beneficial bacteria. The aquaclear is only a month old. Any tips to help get rid of this would be greatly appreciated. It is a dense white cloud if that helps as well which would lead me to believe I have a bacterial bloom.