You need two, one at the top and the other at the bottom. The small model is for 1/2" glass and the big one for 3/4". It is important to have two or the wavebox will walk across the tank.
I have an all glass 120. 4x2x2. I have two Sea Swirls (1/2") flowing back to front. I have the Tunze running across the front of the tank from left to right. The right side looks clean and great. The left side collects all the detritus. How are you orienting your pump?
This site uses cookies to help personalise content, tailor your experience and to keep you logged in if you register.
By continuing to use this site, you are consenting to our use of cookies.