Recent content by Old Guy

Diatom filter, but doing this will also clean out any good stuff in the water that your filter feeders would eat. The older a tank gets the cleaner it seems to stay. For me anyways. HTH

Toss the red sea, Tested 3 of the Ca test kits against a Salifert, Gave all 3 back to the LFS. I know Salifert and better seem expensive but at least they work. For what its worth.

If it is Aptasia don't place it in your main tank, I don't like killing any animal, so you can put it in its own small tank with just a little light and it will probably outlive anything else you buy. I had one single Aptasia in my tank for over a year with no problems. I upgraded my lighting...

For the question about phasing dawn / dusk, Yes.. Led's brightness can be easily controlled. The best way I would think would be with PWM. Pulse Width Modulation. hummm, amounts to turning the Led's off and on real quick with varying duty cycles. The control for this would be fairly cheap to...

I have some 7.0 solution, was just wanting to verify the top end. some probes can drift at the top. I had once seen that limewater was used as a calibration medium for high Ph. Thanks for the info.

Anyone happen to know the PH of saturated Kalk Mix? I was wanting to verify the reading on my PH probe. Thanks