Return flow Cor20 in Water box 130.4

[Thawman]

Hello!!

I'm curious what speed/% others run their return pumps at in relation to tank size?

I've had my tank running for roughly 5 years now, it's a Water box 130.4 with a Cor20 which I run at 35%.

I've noticed some corals all in the same area are dieng off and it appears like the flow in this area has been reduced due to coral growth.

I have 2xMP40s, which I can't really move much so I'm hoping to increase my return flow.

Thank you!!

Hard to see in pics but it's the bottom left of the tank. Effected corals include Green cabbage leather, galaxea, candy cane and a pectinia.

 

[Gumbies R Us]

Bumping your post!