[header] How to breed neon tetras [title] Set up a breeding tank. [step] You will need more than one tank in order to breed tetras, so get another one if you do not have one already. You can use a 12 x 8 x 8 inch (30 x 20 x 20 cm) tank to breed your tetras. 
You will use this tank to bring a male and female tetra together for breeding and also as a place incubate the eggs and baby tetras. [substeps] You can set this tank up similar to how you have your normal tank set up.