i have the "lees" skimmer. when i first installed it to my tank there was always stuff in the collection cup, now theres nothing and its been that way for awhile. ive modded it ( applied silcone to the suction cups to get it to stay in place, it was always falling sideways and ive modded it to keep the airstone at the bottom of the skimmer) i change the airstone regularly and i still have nothing in the collection cup. my nitrates are high (refer to "nitrates through the roof") so i dont think this thing is working. i saw one at petco, a berlin something or other, would this be a better skimmer?? its like 40 bucks. ive also been looking into a diy
skimmer, and since i dont have the bugdet for an expensive upgrade, which would be the wiser choice?? protein skimmers should "always" have something in the collection cup if theres the bioload, shouldnt it??