Hey everybody. First post here, figured I could get some advice on my flowerhorn. Had had about a month. He is five inches long, and has his own 120 gallon aquarium. I put a black background on his tank yesterday and he has been non stop throwing a tantrum. He wont leave the back of the tank, just keeps swimming across and up and down across the background. He'll attack the heaters and rearrange the sand along the way. As amusing as this was to watch at first, 12 hours later he is still going at it. Will he calm down eventually, or should I remove the background? It really makes the tank look better so I hope I don't have to do that, but I will if I have to. Thanks for the input!

