Im in the process of converting from FO to FOWLR and have never used a skimmer before. While at the store the other day for dogfood i saw a cart full of clearance items and in it was a red sea in tank skimmer. It was the kind that just uses and air pump and it was for up to a 90 gallon (using it on a 75). Set it up and it filled the collection cup overnight with a liquid the green color of pond scum. since then it has been about 3 days to fill the collection cup about 1/3 with the scum colored water. Does this sound about right? For some reason i was expecting dry bubble looking gunk and that is what it looks like at the top of the collection tube but in the bottom of the collection cup it is liquid.
Thanks.
Thanks.