I had a male dwarf neon gouramis in a 5g tank. I tried to add a femle dwarf gouramis to the tank to keep his company. However, instead happy about it, the male start to chase and pick on the female all over the tank. The female end up staying at a corner of the tank behind the heater all day long. I eventually remove the female and put her in a seperate tank. Why they are not getting along? How do you breed these guys?