So after looking into ATO systems for a while now I decided not to use one since I don't have a sump. But I am tired of dragging a bucket of water around to top my tank off every day. So I still wanted to figure something out. So here is what  thought of. I'm going to keep a 5 gal container of RO/DI water under my tank and have a water pump hooked up and set to pump up to my reef tank. This way I can just plug in my pump once a day for a little but to keep my water more level. Sure I'll have to do it myself each day but if its already set like that I just have to plug it in and watch it for a few minutes and i'm set. Should help me keep my salinity much more level, and its cheaper than a a full ATO system. Eventually i would like to invest in one when I have a sump setup.

So my question is, what is a inexpensive pump I can get to do this? I was going to get the Aqua Lifter by Tom, but then I read it can pump up to 30" (2.5ft) and I don't think that it will be high enough. Anyone have any other suggestions on inexpensive but decent pumps. Later I'll probably use this pump with a JBJ auto top off system. I don't know if this matters or not, but I thought I'd throughthat in there :) Thanks.