I do like the cpr bak pak, I was looking at a similar reef octopus model on ebay, dual skimmers and such, but not especially try to spend $200 right now, I may have a trade lined up from craigslist,
A - eshopps skimmer PSK-75H
For my 2 12'' stunner strips that im not using.
It hangs on the back, doesnt seem to stick too far out of the tank, no cash expense, mixed reviews online, amazon has bad reviews, drfosters and smith has good reviews. Looks fairly simple to possibly mod if not to my liking, It comes with a pump (some online do not, got to watch that when figuring price) Guy's pic of it shows some skimmate in the cup so it must do something.( I read some peoples cheap skimmers just flood bubbles and never produce skimmate)
I figure I dont need a really powerful kimmer b/c I have an oversized canister filter, and my tank isnt that bad as is, but could be better, and reading leads me to believe besides increased maintinence both skim and can are good to have.
Sorry kinda all over the place on this but I'm thinking hard on this and trying to learn fast and cheap lol