Hi there fellow reefers, im new to the hobby(8 months) i currently have a 120 gallon rimless cube. i have a very bad outbreak of cyano bacteria in my aquarium. the stock list is 1 4in orange shoulder tang, 1 2in foxface, 2 fire fish,4 blue green chromis, 2 davinci clowns. coral wise i have a favia,hammer,paly colony, red candy apple zoas, a lepostrosis frag(not sure on spelling) and then i have a rbta. the tank currently has no sump as with the dimensions of the one is proving hard to find, so short term i am going to run a rubbermaid sump. now that i have given some background information on to the question is the Eshopps PSK-300 in sump skimmer a good choice for my system? thanks guys looking forward to responses.