Ya I know the arowana needs a bigger tank which is why I'm making the big bucks now so I can hopefully buy one in the near distant future or a Intex pool as temporary I live in Florida sooo it would be ok for short term.I have a 150 gal with an ornate and endli 10 ish and 13 ish inches and they kind of make it look small (width wise) imo that aro needs a bigger tank now.