Shmax,
There are a number of "purists" in this hobby, and most of them haunt Reef Central. Never feed them after midnight.
For my own part, I've broken several "rules", and I'm glad I did. Never pump the return water in at sand level, they said. Only use sugar-fine substrate, they said. Never put a gate valve on the drain line, they said. Powerheads are a necessity, they said. Always put your liverock in the same day as the sandbed, they said. Don't put a red-striper goby in a two week old tank, they said. Don't put a frog-spawn coral in a five week old tank, they said. A court-jester goby requires a more established tank they said.
I've broken each one of these rules, and I'm glad I did. Tank looks great, parameters look great, everything is healthy. Turn over is good, turbulence is great, and the sand bed isn't trapping detritus. My check-valve works as intended (100%), my drain line gate-valve is not a problem. Heat *is* a problem. I wouldn't need a chiller, they said.
Patience is a virtue, in most everything, it's true. And when seeking sunken treasure, best give Neptune his due. But while testing the waters and exploring the new, don't forget that this hobby... still belongs to you.
Peace.