Some Carbon use/light intensity observations for ya.

[Beverly]

Originally Posted by Canadian Man

To all you people that don't use carbon, would knowing that if you used it on a regular basis you would get "MORE" out of your light's make you want to use it?

I don't use carbon in our 2.5g, 7g, 14g or 42g unless something toxic has died and the inhabitants in my tank are suffering. Haven't had noticeable yellowing of the water in any of our tanks. Do water changes and complete filter/powerhead breakdown and cleaning in outgoing changewater weekly - WEEKLY being the key word here.

Clean the glass a couple of times a week. Have no skimmer, but turkey baste the sandbed, rock and corals 2-3 times a week to help export detritus. Geez, I better do that today after feeding

Did a couple of studies on carbon use in fresh and marine applications a few years ago. I was as scientific as I could be, but, really, I'm no scientist

The studies may be found at:

http://www.lostmymarblz.com/75gal-studies.htm

The Marine and Freshwater Carbon Study data were so complex that I did not complete the Observations or Conclusion parts of the study. I left those for any and all to discover for themselves.