I would recommend a couple Mini-Jet 404s. They'll run about $13 each. One in each back corner or front corner (opposing eachother). What kind of 10 gallon is it? Does it have a top? Standard 20" flourescent light?
Where are you located. I know someone who could probably hook you up with some LR rubble and some sand. Email me at
GatorCSM@comcast.net and I'll give you the information.