Currently have two 3 inch senegal bichir, one 4 inch delhezi and one 4 inch weeksi bichir. They are currently in a ten gallon grow out tank, would they be fine in that 10 gallon for now? or should i put them in a bigger grow out tank now. 20 gallon or 30 gallon? Also what is the recommended tank size for all 4 of them? 75+? I know that the weeksi can get pretty big... I was misinformed but oh well im liking him anyways. Im still new to bichirs, but im liking them alot now they are truly unique. Any info would be appreciated.