Well after thinking about it like 10 minutes. No more like after making dinner and eating. I thought about it and think I'm going to get a 5g. A 10g would be pushing it. But I have the room to setup a 10g now that i think of it. let me think her for a second.

Ok I'm back lets see I'm going to setup a 10g. I can move the
FW tank it's not to big. I can find some were els for it.
Now I got a
HOB for a 10g that I saved to run carbon if I need to. But would that be good enough? Or should I get the sponge filter.?
I have cursed coral would that be good enough for it? I could put
live rock in it. But doing all this sounds like setting up another reef tank.
Well if I set this one up. That gives me a good reason to go out and buy a better heater then. cause the one I have in my 29g seems to small for it anyway.