I gave it a good cleaning when I transferred to this tank and it still looks clean on the inside chambers. I do get some gunk on the tube in the collection cup and the bubbles are usually up to the top of the tube but don't seem to roll over into the collection cup very much. Is this due to lack of organic material in the bubbles? I see everyone always showing off their cups full of dark skim mate after only a day or two of running their new skimmers and I'm not getting that. I would like to think that it's just because I don't have much organic material in my water but I don't really know for sure.
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