Reply To: CPD newbie with some questions… Welcome to the website! › Forums › The Celestial Pearl Danio › Habitat › CPD newbie with some questions… › Reply To: CPD newbie with some questions… July 28, 2007 at 11:30 am #11745 CrazedpufferParticipant Welcome to the forum! I would put a top on it just to be safe. I don’t believe CPD’s are jumpers but any fish that gets scared can jump out of a tank with ease. You will need some plants though. Java moss is very easy to keep and used for mating.