is this rfg too big for my 11gal cube?

[stewy14]

so I made a diy, rfg adapter from a piece of tubing, it is emptying out my back wall pretty quickly tho, its either that or my pump being at 80gph lol

idk the size, its 3 inches long, around there, and wide in diameter, around as wide as that coral in the top left
what is that coral btw? still stumped

I have one thats about 1/2-1/3 the size of that rfg

 

[shakacuz]

coral pictured seems like a frogskin acropora.

regarding the RFG question/issue, can't help there, sorry. perhaps the included DIY piece increased the flow which is causing the back chamber to empty quicker? can your return pump be slowed down?

 

[stewy14]

coral pictured seems like a frogskin acropora.

regarding the RFG question/issue, can't help there, sorry. perhaps the included DIY piece increased the flow which is causing the back chamber to empty quicker? can your return pump be slowed down?

it can be, but if I do, there is barely any surface agitation