Too much flow?

over flow is better than too low of flow

there are many ways you can reduce the flow. maybe ball adjuster valves on your outflow tubing to reduce flow, you can angle your stream in different directions too.

I found that once plants start growing in they will choke out a lot of flow. You might be glad you have the large pump later on.

You can reduce the flow right now by wrapping the inflow section with a filter pad or pantyhose. It will also work as a pretty nice filter.

691175002 said:

You can reduce the flow right now by wrapping the inflow section with a filter pad or pantyhose. It will also work as a pretty nice filter.

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I'll give that a shot, thanks. Do you think this will put any stress on the motor?

Cucumber Club Member said:

I'll give that a shot, thanks. Do you think this will put any stress on the motor?

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I've seen it recommended by others, and can't imagine it doing any damage since they use impeller pumps in filters as well.

My tank is a 5' 120G. I run three Rena XP filters, and two Hydor Koralia 600 Evolution circulation pumps.

I decided I wanted more flow, and purchased a Koralia 1150. Turned it on and 30 seconds later it was back in the box. Any longer and it might have uprooted my whole tank. Sounds similar to the size of the pump you have there.

The thing is, you do want good flow, but that means plants gently swaying, not blowing around, bending over, or floating all over the tank. It's a fine line.

You might find that you would be better off with two or three smaller pumps arranged around the tank, so that there is flow everywhere. But think nice gently sweeping flow, not a whirlpool.

Later I did add two Jebao RW-4's. They are adjustable, but I only keep them on the very lowest settings, and only run them during the co2 period.

Good luck and you have the makings of a very nice set up there.

I think I will look into getting around a 600 gph pump. This thing is launching fish out of the water if they stop swimming while fighting it.

lol yeah 1320 gph is way too much

i run 2x koralia 240gph powerheads on one of the sides of my 75g tank. my flow is right about where i want it with that setup.

also I have found that single higher gph pumps are far more 'disruptive' than having multiple smaller pumps.

You guys and your big powerheads crack me up. Not that there's anything wrong with it. :smile2:

Cucumber Club Member said:

I'll give that a shot, thanks. Do you think this will put any stress on the motor?

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i heard its better to put the restriction on the outflow rather than the inflow. i burned a hang on back filter by restricting the inflow too much. took about 2 weeks of restricting until the filter wouldnt turn back on when I plugged it back in after a cleaning sesh.