floor

I am almost done setting up my 265 and was thinking about picking up a gyre for my tank. It will have a sump and canister and plenty of filtration but i am doubting the amount of circulation i will have. Sand bottom, driftwood, caves, pvc, no plants. Uv sterilizers and algae scrubbers and all...

My Florida gar jumped out over night. I threw him back in the tank this morning and he started to rehab movement. I then grabbed him and held him over the air stone thinking this would get everything to flow through his gills. He's swimming around fine but it looks like his butt wants to keep...

So in quite a few areas ive found i could fit an envelope between the stand bottom and the laminate floor . Should i worry about this? If so, what can i do to alleviate the problem? And ive also come to the conclusion using a 4 foot level on the floor there are some low and high spots. Should i...