Just a couple of questions about my skimmer. I have a Reef Octopus module 2 x Protein skimmer. Just starting out my tank. I have a 60 gallon tank with 3 Chromis and a clownfish. 50 pounds of live rock, 60 pounds of live sand and a Rena Filstar xp3 canister filter. The tank is up and running. My skimmer is producing foam, but clear( with some stuff in it) not green or yellow. Does my skimmer need to be broken in or is my bio load too light right now? Also where should I place my collection cups? Too low and the cup fills up very quickly. Too high and no foam rises in the cup. Is there like a rule of thumb or a guideline to go buy. Reef Octopus directions are just diagrams.