[Johnpe123]

how big of a tank size does one of theses needs to be held? more than 75g?

 

[JesseD]

i would put one that size in atleast a 90g. that is quite a size difference though.

i would get a 90g for a rhom 10-13inches & a little bit bigger tank for 14-16inch rhom...just so it would have more swimming room.

but to answer your question...Yes, bigger than a 75g tank.

are u plannign on getting one? maybe if u narrowed down the size a little i could help u a bit better

 

[Mr. Hannibal]

You need at least 100g for such a big Rhom...of course the bigger the better so if you can get a 140-160g...

!

 

[o snap its eric]

As stated, the more room the bigger. in a 75g, you can fit the maximun of 10-12"

 

[Poseidon X]

a 90 gallon is not going to be any better then a 75. for any fish bigger then 12 inches your going to have to move up into a wider footprint.

 

[MPower]

I have a 12-13in rhom in a 75 and I need to upgrade his tank. I would go with a 120 for 13in and smaller, But if you go any larger you would need a 180.

 

[piranha 13]

Yes you need one bigger than a 75 gallon. I would say at least a 130 gallon. He would already be huge but you can probably get him to grow another couple of inches if you get him a big enough tank.

 

[DiXoN]

for 12-14'' i would get a tank at least 4' long but preferably longer and at least 20'' wide as stated before its the footprint you need so the bigger the better.
if you go for the full monty 14-16'' then go big real big 6'x2'
dixon