Bates1990 said:I have a 100 gallon right now but I'll be starting up a 210 gallon in a couple weeks my silver arow is around 7 inches right now. I had a 17 inch silver but I left a tiny whole open on the top of my and he jumped out( and yes personally I think 220 is good for life maybe with a silver but almost for sure with a Jardini. Arowanas usually need like 6-8 ft longer is better
My 150 is 6 feet long but only 18 inches wide