Euro reef then ASM skimemr,s ASM skimemrs are only a little worse because they arent as strong as euro reefs, euros are made of acrylic, but ASM are made of clean OVC, they say ASMs can be croped for 10feet max without having bad effects, i seriously dont see a need to have a skimmer that you can drop off a building, unless your gonna smack your kid with it, i would get an ASM great skimmer, same pump as a euro reef (needle wheel sedra, which is what counts) and you also save $100 or more on a skimmer that can handle a large tank and is taller and bigg then the euros (the bigger the better)