I did a little digging this morning on dry foam skimmate vs wet foam skimmate. I have built my own protien skimmer and it's producing a large amount of dry foam. I mean like produces about a quarter cup of nasty looking skimmate overnight. It's very dark brown and had quite a bit of large particles floating around in the collection cup. While I'm pleased with my diy skimmer I'm wondering one how do I know if it's effective for my tank or should a build a second one just to be safe.... but what is the best wet or dry foam? Wet foam seems like it would waste a lot more good water than the dry foam. I haven't experienced wet foam in my system so anyone else have any suggestions. Maybe run my current one dry and a second smaller one wet????