how long before motoros out grow a 6x3?

[toehead11183]

giving to the zoo is not my goal. it is a backup plan if and when the rays outgrow the tank and i cannot provide a larger tank. so far in the last three years i have gone from a 75 to a 150 to a 180 to a 120 (during stay in apartments) then to a 280, if things progress as they have, i should be buying a dingy and charging admission to my house

 

[Raymann88]

My tank is the same size (mine is a little taller) and has 100 gaL. Sumpl tank. My marble motoro (smaller than reg motoro) female is about 1.5 yrs old and I feel she needs a bigger tank already. She only shares with a male pearl and he is nearly 2ft from nose to tail (female roughly the same) disc is 15-18 inch and she is still growing fast.

I have daily drip for 30gals.

Buying a fish that cannot be housed for life with the exit route of giving to a zoo is so very wrong and should not be an option.

That's huge for a marble female what / how often do you feed her? My regularmarbleisnt that big and she has had 2 litters