to put a 2-3 inch silver arowana in a 10 gallon that already houses a halfmoon betta? I have a 55 that it will be moved to when it gets bigger and a 180 after that, but I'm afraid that the aro would get eaten by the pim pictus or the 8" arowana that's currently in the 55 and I was wondering if I could grow it out in the 10 gallon. I can move the betta to an empty hex tank (I think it's 3 gallons, not sure) if necessary.