I just got my GT this past sunday. It is eating well but always hides under my driftwood. I originally had two of them but gave one to my neighbor since the one that I have now was dominating and beating the other GT up. Now it just seems timid and does not want to come out especially when the light is on. Does this mean that the fish is stressed or it just needs time geting used to its new home? Please let me know what you guys think. Thank you very much