I'll look into it, thanks. I'm definitely not going any larger than 40g. Probably something like a 29g (I have a 12g cube currently). What I like about my tank now is in addition to the day-lighting I have a nightlight/moonlight feature I can flip on at night for a while that's really cool. I'd like to have something similar with a new tank.
It's a little overwhelming because the one I have now all came together; tank, lighting, filtration is all in an overflow in the back, came with a pump and powerhead, etc. Getting something bigger I have to get a lot of these things separately most likely in addition to other things like a protein skimmer and heater. I just want to make sure I know exactly what I need and then the cost, cuz the cost of it may prevent me from doing it for a while.
I initially hadn't planned to upgrade just yet, but we're moving the current tank to a different area so I have to drain it and go through all the trouble of moving it. I figured if I'm doing that anyway I'd just as soon get a bigger tank and go that route since I'm going through all the trouble anyway, but I also don't want to drop a ton of money on it either right now. So doing the research and see what it looks like.
I also know I can sell my current one so I'll get some of the money back. We'll see.