How Much Flow is Too Much Flow?

[Hugh Mann]

I am rebuilding my 55 gallon Mostly FowLR tank. Mostly because in the future I plan to have a BTA and Green Star polyp, other than that, fish, fish and more fish. Some of which will have large fins like dwarf lionfish and marine bettas.

I have a Hydor Koralia 850 gp/h powerhead, but am somewhat concerned 850gp/h is a bit much for 55 gallons.

 

[Sailingeric]

This much is too much






I think you will be fine, I have about 1500 gph from my Nero powerhead for my 75 gallon tank and everything is doing great

 

[andrewey]

I think you should cross that bridge when you come to it. In the meantime, I would watch some videos on reef flow, particularly videos of happy bubble tips. A 850 can either be too little, just right, or too much depending on the return flow, aquascape, etc.

 

[Ryan Wolf]

Listen to the fish, coral and substrate. I have learned they dictate what works and what doesn’t.

 

[Gernader]

In my situation, I have over 3,100 gph in my 75g (4 ft long) and it is mixed reef. I have an anemone, lps, softies, and sps in there. Now, I'm thinking to increase even more flow lol.

I would check on your livestock to see how they react to the flow.

 

[Jvalle]

You can always play with the flow exit to make it reflect off the glass and reduce current , I also move new corals around so they adjust as some like more flow than others. I have extreme flow in my tank and sump and when I mean extreme I mean extreme. It keeps everything clean and helps in keeping my water parameters steady thx