ok here is a updte on the little project

today i will go out and buy a 10 watt or 20 watt screw in 50/50
also some sand, live or aragonite, and add the remaining of it to my 15, probaly put 10 lbs. of sand in there.

heater, we have central heat and air (as most people do in texas) but i watn a heater jsut becaseu our house stays at 76-78 degrees and the water tends to be colder then teh air temp, so my question is should i buy a regualar heater or one that sticks to the bottom of the tank like a reptile terrium.

will use a couple pieces of rock from my 15 and start to cycle with a shrimp (from h.e.b raw)