we have a 45 gallon with an oscar, weather loach, 2 iridescent sharks, a flame gourami, and a rosy red minnow. plantlife includes a brazilian sword, anius sword, and a green hedge, along with a huge plastic vine that takes up one whole side of the tank. so far, the oscar has been trying to chew on the gourami's sensors, but the gourami swims away before he gets to close. his orange markings fade into a pale gray as they approach the head, never purely blending in with his dark-gray backround-is this natural? he likes to hide in the huge vine. so far, i have not seen the gourami surface for air.i'd also like to know the latin name of the flame gourami. i read one time that the flame is a hybrid between a honey gourami and a neon blue gourami-is this true(ours has no color resemblance to a neon blue)?