When I was a kid, I had several tanks in my basement devoted to the breeding of Anabantoids (Bettas, Dwarf, Blue,Thick Lipped, Pearl Leeri,and Paradise Fish). My setup was simple, Mcgiver-like, and effective. A simple 10 gallon tank, filled to just over the heater's element, with minimal filtration / aeration - enough to circulate the water and keep the temp somewhat uniform. I took a styrofoam coffee cup and removed the bottom, and folded the reamainder into quarters. I then floated the the pieces such that the concave part was down, to allow the fish to blow bubbles and debris into the styrofoam. I would also place straw in the tank so that it would produce infusoria (tiny organisms) which would be the fry's food. Initially, for about a week or so, their yolk sacks would suffice for nourishment. Then the infusoria. After that they can eat newly hatched brine shrimp, Technically, any decent pet shop should have a kit, but if you have trouble locating one, you can improvise. Here are the materials: a gallon glass jar, brine shrimp eggs, aquarium salt, a light source, an air stone, a pump & tubing, and a shrimp net. Mix the salt, eggs, and water, according to instructions from the container of eggs. Get your aeration going. Put a light on and wait a couple days. The eggs hatch and the shrimp are attracted to the light. You then scoop them up with the net. Rinse and feed. That's basically it!