Last week I bought 6 sparkling gouramis and 9 glow light tetra for my 30 gallon cube. Everyone has settled in fine everyone is eating and seem healthy and happy. I'm going sat to buy a few more small fish to add to the tank so lastnight I was doing some research on what would be good tank mates for the fish I have now. I ran across an article saying sparkling gourami and glow light tetra shouldn't be put together? Should I remove the tetra and put them in my 40 gallon?