Okay.. I am noticing what looks like red slime algae taking over my chaeto in my sump. What could possibly be causing this? My sump is set up exactly how my old one was in my 75gal and I never had this issue. Only thing I can think of is the bulb I have in there is going bad? Could there be any other possibilities to look into? Flow is pretty good down there, and I have my drain hoses pointed directly into my chaeto since I have noticed it. Or should I move the hoses away from the chaeto? My sump is set up where I have my drain hoses entering sump on far left, LR inbetween drain hoses and chaeto, then my return and skimmer on far right. Thanks for any help on this.