Looking for a low flow submersible pump/powerhead

I am trying to build a cheap fertilizer dosing setup and want to put a small powerhead in a diluted solution of ferts and have it run for 1 minute a day.

I will dilute my solutions down to whatever levels necessary.

I bought a couple Aquarium Systems Micro-Jet 320s, but even on the lowest flow setting the do 30L per hour. I might be able to restrict or dump some of the flow back into the container, but would like a pump with a much lower flow.

Thoughts?

I actually just bought the Red Sea Power Reactor. Works well for CO2, not suited to my needs for dosing though.

mellowvision said:

the red sea co2 kit comes with a really small powerhead, I think you can even bury most of it... don't know more.

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