8g What could I put in it

[sprang]

I have a 7gallon mini-bow and would highly recommend it from what you want. I have had the eclipse also and hated them. With such a small tank being plastic it scratched like crazy from the live rock and sand, plus upgrading lighting on a mini-bow is much simpler. as far as fish I would only keep one,do to territorial squabblings.

 

[lefty]

I think the most important thing at this point is the size. If you're not keeping corals, you don't need to worry about the lighting so much. Scratches can be buffed out of acrylic tanks. You just have to be a little more careful when it comes to not scratching them.
-lefty