Flow moving substrate.

[silent1mezzo]

I have a FX5 filter in a 46gal bowfront and the flow keeps moving the rocks around on the bottom creating spots that are bare.

How would you guys fix this problem?

 

[fishtex]

position the spray bar or outlet lower in the tank, then point it towards the surface.

 

[geronimo69]

position the spray bar or outlet lower in the tank, then point it towards the surface.

+1

I don't have an FX5, but my Fluval 405 can be adjusted to slow down its flow... Perhaps you can with the FX5 as well? I mean, you have it on a 46 gal...

 

[PrecisionAquatics]

^ Yup. Adjust the outlet so it doesn't hit the substrate so hard.

 

[silent1mezzo]

Currently its 3/4 up the tank and pointed towards the surface. I'll try moving it a bit lower (don't have that much extra hose).

 

[eatingleg4peanut]

thats weird its moving substrate if pointed up, I'm assuming your substrate is gravel since you said rocks. Are you sure its the flow and you dont have a burrower or a nester?

 

[SpeshulEd]

You can control the flow on the valve where the hose connects to the can.

 

[Experiment397]

sounds more like the op has a burrowing fishy, if the spray bar is pointed up then it shouldnt affect the substrate

 

[silent1mezzo]

Its not a spray bar just two nozzles. I do have a few fish that like to poke there heads in, but I've seen the gravel (sorry I said rocks before) moving due to current

I'm going to reduce the flow and move the nozzles down lower in the tank.

 

[Experiment397]

oh in that case then point them as high up as you can as low down in the tank as you can