everything is 100% fine. The fuge can handle pretty much anything I throw at it. The LR in the display also handles alot! I am VERY confident in my setup thus far, which is the only reason I did it. If you have followed the rules, overdone your rock, nutrient exportation, NNR, this is your route if you are having cyano problems... Like Bill said USE GLOVES. Bristleworms got a nasty lil sting.