MP40 too high flow

[Allenh427]

Hi everyone,
I have the waterbox frag 85.3 (3' x 2'). I bought 2 mp40s because the glass is 0.5" thick. At 1% on both pumps they are still pushing out 1600GPH each which is pretty turbulent in my tank. I have 0 dead spots so I don't have any particularly good places to put my soft corals who get battered with flow. Temporarily I just have the pumps running in feed mode which is ~800GPH each.

What can I do to reduce the flow of the MP40s, via a physical attachment or get the setting below 1% on the app?

Thanks

 

[Boonsiew830]

Research the nemprotect on the BRS website. They might dampen the flow somewhat.

 

[Bpfor3]

Taking one out an option? I have two on a 150 in a 50/50 mixed reef and run them at 30% most of the time.

 

[coralfishreef]

Maybe try different modes or placement. For example place both ph directly across from each other as high in the water without the phs sucking air on the left/right sides and not on the back wall. For mode try lagoon or short pulse. Or, as Bpfor3 mentioned, try removing 1.

 

[Bensonthefish]

I have 2 mp40s as well in my 130.4, 48" long tank. Same problem of too much flow even at 1%. Had to send one back to ecotech as it seems defective to not slow down at 1%. Took out the other one as it is doing the same. I just have 2 nero 3s right now and corals are happier.