My little 2 in. EBJD is in a 20 gallon long aquarium now. I have had him for around two months now with NO problems with internal parasites and such. I got him for a steal for $7.99 USD from petsmart. That is the part that scares me. People say they can die in the first couple months. I am thinking since I got him/her at Petsmart that makes the chances higher of him dying. Should I invest in a new tank now or wait some? Also what would be better a 46 gallon bow front, or a 55 gallon? Thanks.