Are these alright demesions for a CK, a few Orino or Occelaris Pbass, TSN, and a Arowana? I found a petstore going out of business and might be able to score one of these for cheap. Its 60x48x18 which is ~240g, not tall but whatever, I would rather have 4 feet wide. Would a 50G for a sump be efficient aswell?