Good morning. I have 3 boesemani and 3 turquoise rainbowfish in a 10 gallon quarantine tank at the monment. Sunday will make 3 weeks since I purchased them. I am attaching a picture of one of my boesemani (the pinkish one) rainbows. I know they're growing because I can tell they are already bigger. And I know they can be shaped differently and not necessarily oval, but I wanted to show it to you and see if you thought everything was normal. All the fish are acting normal. Very energetic. No signs of breathing trouble. I just done a 50% water change Sunday. As to feeding, I feed once per day Monday thru Friday rotating daily tropical granules, tropical flakes, bug bites, freeze dried bloodworms, then bug bites spirulina flakes. Then, I skip Sunday. I'm probably just fearful of something happening to them Lol...but I wanted someone else's opinion.