Hello all- I have 4 tanks going so far... One of my tanks is a 60 gallon 4 ft . has 20 yellow labs,2 bristlenose and 1 rainbow tropheus in it. for some reason I can not get the water crystal clear and the glass is always dirty. I have to clean this tank every 4 days. I have a hob filter and the FX6 in which i just started running about 2 weeks ago. Any help would be great. See you all soon.