Needing your suggestions - The Planted Tank Forum
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post #1 of 2 (permalink) Old 05-30-2017, 07:37 PM Thread Starter
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Needing your suggestions

Below is a picture of my son's 20 gallon tank (my "trial" tank before I get my own). I'm not going to go over what I have planted, as you can see it all. What I will say is that I have a Marineland Penguine 150 HOB that has the outflow just right of center of the tank. The water is flowing out, hitting the front glass, and deflecting down and across the front. The rear right side of the tank gets a little flow. But the left side of the tank gets VERY little flow. I think I am getting a fungus issue as a result of the low flow. I've talked about the issue in this thread HERE.

So, I'm wanting to increase the flow by using some water pumps/powerheads. The problem is, as a newbie, I'm not sure if I need one or two of them, or where to place them for the most effective flow. I have fish AND shrimp in the tank, so that may play a factor in where they are placed.

My initial thinking is that I place one on the back glass just to the left of the HOB, and have it angled toward the left of the front glass before it hits the corner.
And if I need TWO of them, the other would be placed just under the HOB outflow and angled to the right front glass, just before the corner.
YESm the diffuser/bubbler can be moved a little.

I'm curious to know what everyone's suggestions are. From there, I'll "average" things out to come up with the best option!

Thanks in advance!
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Last edited by Wendovervista; 05-30-2017 at 08:04 PM. Reason: spelling correction
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post #2 of 2 (permalink) Old 05-30-2017, 08:23 PM
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A while back I dipped my toe in DIY Bio-CO2 and used an Elite Mini filter to deliver CO2.
Small, has a decent flow rate, inexpensive, and just might serve your purpose well. Also, if you put a length of air line tubing up and out of the water, it will draw air for tiny bubbles (w/o an air pump).

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