<a href=showthread.php?s=&postid=11054690#post11054690 target=_blank>Originally posted</a> by Fishbulb2
I don't know. I think it's an opinion. I think the RS80 will be more than enough for anything reasonable in a 75g tank. I think there is a truly ridiculous tendency these days to get enough enormous skimmers way to big for our tanks these days. If the skimmer is too large, you'll never get a decent foam head either. That's what i'm struggling with now. With the RS80 you'll just have to dump the cup once a week or so and perhaps skim dryer if you won't have a chance to get to it that week. if you go way too big, then the skimmer won't even work at all. I think ER rates their skimmers quite well. The RS80 will save you a TON of money, work absolutely just fine on any 75g tank, and should be way quieter as the pump is smaller and drawing less air. I would again, definitely go with the RS80.