Water flow in Sump

[mark]

27W 6700K PC about 1.5" abv water.

[Glennrf38]

That looks much better than mine. Mine is about the size of a baseball and dark green after a year......

[skylord]

You could add a small power head to your sump or you could stir it up, move it around and spread it out once or twice a week.

It not growing much is normally a good thing. The more nitrates you have the more it will grow.

I use 28w CF in a clip on light in one area and a 28w PC over another. Both do about the same as far as I can tell.

Scott