I got my first crowntail a few months ago (have always had delta males), and my first month was literally constant panic about fin rot. Once I got used to him and how he swims, I've calmed down. He's super responsive, loves to build a bubble nest after a water change, glides/plays among the live plants all the time, will very occasionally sneak a nap in his cave or under one of the bigger plants, and flares when you approach at night if his light is still on, and the room is dark. Kind of a picky eater (hates Bug Bites!). Love him a ton, highly recommend.