I've had six Rummynose Tetras in my 10 gallon planted tank now for several months. They were fine for a while, but lately they have become extremely shy and have taken to hiding in the plants all the time. They never come out anymore, sometimes not even to eat. As the plants have grown in, maybe they have too many hiding places. I've thought about adding a couple more rummies to increase the school size in the hope that it may give them some more confidence. Any ideas? I'd like to actually see the fish now and again.