How big does a normal average stingray grow?

[Anderman]

We are always seeing post that some ray get huge. But does anybody here have them that big? I have not seen a ray bigger than 24" on this club. If they are huge explain how long it takes. There's got to be at least 50 people with small Motoro none bigger than 18"

I had a Castexi that was 24" and had to sell it to a guy with a bigger tank! Took less then 2 years to reach 24". How do you think an 18" motoro is going to do in an 18" wide 90 gallon.

 

[Just Toby]

I have posted a pic of a female motoro over 24inches before, I have seen multiple pictures too. Leaving this aside this is a thread with a 90gal tank in question. Even an 18 inch ray deserves a tank twice it's disc size in width, my 15-18 inch ray is 2ft tip to tail and I feel guilty with36 inch front to back and will soon have 48/50inches.