Hey im a total noob to this to excuse my ignorance, but I just got my 30G tank with sand, live rock filter and heater. My question is, is it necessary to get a skimmer right away, will the fish live with out one, im trying to save up and recupe some of my money again before i go spend some more. So would fish be fine for like a month without a skimmer? Or is it a pretty much must have before you get fish in there. Thanks