Tank size for a rainbow shark

I got a rainbow shark thinking they could do well in my 29 now I know they can't however I'm renting and I can only go up to 55 gallon I can try to go bigger but it's a lot of weight would a 55 be okay I've also tried to rehome the Shark no one has wanted it so im trying to get it into a bigger tank and need advice if the 55 gallon is good

 

IMO, a 55 gallon is the minimum tank size for a Rainbow Shark. So yes!

How long have you had him and how big is he?

 

IMO, a 55 gallon is the minimum tank size for a Rainbow Shark. So yes!

How long have you had him and how big is he?

For about a month we've had hom trying to find a new home hes about 2 inches and growing

 

For about a month we've had hom trying to find a new home hes about 2 inches and growing

Mine started in a 32 at that size or smaller. He’s now in a 75.

How soon could you get a 55?

 

Mine started in a 32 at that size or smaller. He’s now in a 75.

How soon could you get a 55?

I live in a very small town so I can probably get a 55 in a couple days depending on price and set it up I can cycle it fast with some already cycled media that is what I'm hoping to do I just have catfish so needing him out soon as he gets bigger