Yup I figured the water at that plus about 500 pounds of glass and wood sitting on top the tank too, thats were my 2500# estimate comes from. Weight on the floor is a few hundred pounds more, probably closer to 3,000# total with the weight of the stand and 66g sump tanks. Wood is hit or miss. I bounced back between a few places hand picking out all the pieces. One place might have had good 2x4's but the 2x6's were as wet as pressure treated wood and already warped, so off to another place...240g of water at 8# per gallon equals 1920#, so yeah just shy of a ton not counting the glass so overenginerig it would be best, exspecially with small children around, also I would put some steel bracing on the corners. oh and a really cool thing to think about is a good ration of tank to hood ration is to make it a 6th of the tank height and it will look ballanced. Oh and in Ohio what quality is the lumber here good lumber is hard to find and freaking outragouse priced and the cheap stuff should be labelled in the store as "crap only good enough to burn".
just my two cents, nice build and good luck.
Thanks! Neither can I! I am really hoping to have it running within a couple of weeks.awsome, cant wait till it's finish