I agree with what all these people have said, I too started with a 10 gallon and soon after upgraded to 29 gallon only because I didn’t have enough room for a bigger on. Look in the Classifieds section of the newspaper once saw a 200 gallon w/ (3) 175w bulbs, sump, pumps and rock for $600, I should have gotten it…oh well. You should get at least 29, I promise you….whatever you get now, in 6 months you will want one twice the size.