Macroalgae Nitrate Export

[Gaffer]

Originally Posted by bioload

Not sure myself, and more test would be required, but there may be negative effects of running macroalgae lighting 24/7.

No too sure, but I run mine 24/7 in my sump & there have been no ill effects.

Many people run it 24/7, but many have switched to alternate lighting to the main tank in an effort to control pH swings created by CO2 caused by respiration of the macros.

I suspect the changes in water chemistry you are seeing from the closed system you have running there. It could be that the pods etc dieing as Mega suggested, or the cheato could be dieing as a result of a lack of nutrients and increased photocylce.

Andrew