hydor koralia question

[FUA]

what kind of controller, for the flow or like a wave maker?

 

[Mavrk]

Half the reason for a koralia is for the dispersed flow. My new K4 came with this and I did not put it on. My first K4 did not have this. Even though I am not using it currently, I am thinking of getting an anemone and will probably put it on at that point. I wish I could get one for my old one as well (I would not be willing to pay for one however).

To the OP... The guard is in two pieces, a grid and a cap. Put the grid in the cap, then push the cap onto the front of the koralia (where the water comes out).

 

[Jorgens]

I never got one either. But mine creat a "vortex" type underneath. great for scooping up nems.