I started my saltwater hobby with a 90 gallon tank with a Red Sea Berlin classic skimmer. Hate it. It takes a lot of tweaking and I have YET to get a full cup of foam. Stinks. I have it about 3 months and will be getting rid of it after my new skimmer comes in.
On my 50 gallon reef tank, I use a AquaC Remora and just love it. Work like a charm. But the cup fills frequently, if you don't keep and eye on it every other day or so, it will overflow the top and start to hit the wall. Keep on top of the rinse outs and you will be fine.
I noticed that the Aqua C Remoras now come with a cup that has a drain fitting. Now you can hook up a hose that runs the cup overflow down to another container so you don't have to constantly rinse the collection cup. Makes maintenance easier. I will see if I can get mine swapped out for the new model. I can't recommend enough the Aqua C Remora, first hand experience - they rule. I got mine through {LINK VIOLATION}
I had ordered back in the middle of July a Euro-Reef also through {LINK VIOLATION - out of respect to the owner and operator of this site, please do not post links to competitors! Thanks! :happyfish: }But since the Euro Reef skimmers are hand assembled and made, they are high quality but you wait for them. I contacted {LINK VIOLATION} today to see when mine would be coming in, they said it would now be at least until the middle of Sept. I can't wait that long, don't want to spend another minute with the Red Sea Berlin. Maybe it's me and I didn't tweak the red sea berlin skimmer enough or right, but it just does not work well. I can understand it not working well right now because I still have my tank in hypo and with the decreased salt, there would be less gunk - not enough salt to make foam.
So, I gave up and told {LINK VIOLATION} to cancel the Eruo-Reef and send me the AquaC EV-180. They said that unit is more powerfull than the Euro-Reef model I originally ordered and they promised I would not be unhappy.
I don't doubt it, I love my Aqua C Remora. I paid extra to have it shipped 2nd day. I will post a follow up to let you know how I like the new skimmer.
Good luck to you.