i am looking to buy a bigger tank and the guy we buy our coral from said to come here and ask. i dont have a bunch of money but my 10 gallon tank isnt doing very well and would like to save what i have if at all possible!
Check out the selling forums, there's a couple tanks up for sale right now. How big of a tank are you looking for? Maybe post some specs about your 10 gallon and what the issues are your having with it, there might just be an easy fix that could end up saving it.
A 10G reef tank is very tricky to maintain. This is a situation where bigger really IS easier. To a point. If you have the space and a little bit of money, you should shoot for at least 30G - 50G to 60G becomes much easier to maintain. The big cost as you get larger will be the lighting for corals, but you can always upgrade lighting down the road. Good luck with your new tank! (And always, share some pictures with us.)