GPH for fish aggression

[hrdneglcry]

I have a 180 with a 120 sump. I am running two powerheads in opposite ends. I have no coral. The sump runs a Jebao DC12000 return almost on full power and the tank has two 500 gph power filters on the back. Are two powerheads; one at 1200 gph andnthe other at 500 gph too much flow for the tank? For triggerfish I have found that powerheads help curb aggression.

 

[MnFish1]

I have a 180 with a 120 sump. I am running two powerheads in opposite ends. I have no coral. The sump runs a Jebao DC12000 return almost on full power and the tank has two 500 gph power filters on the back. Are two powerheads; one at 1200 gph andnthe other at 500 gph too much flow for the tank? For triggerfish I have found that powerheads help curb aggression.

Depends on what else is in the tank. My general comment is that there is no such think as too much flow as long as it’s constant. Given the flows in the ocean I doubt yours are a drop in the bucket. I also personally don’t believe it combats aggression. How does your tank look with the flow

 

[hrdneglcry]

If i run both its ok. no corals so not much to see from flow

 

[Largeangels]

I don't really run power heads anymore. I prefer something like the Jebao SCP-120 Sine Cross Flow pumps. Constant, random, sine wave, etc. covering quite a bit of tank area compared to powerheads. So easy to increase you can see what they like. I also don't think flow changes aggression.