Sumps and HOGs

[SantaMonica]

This is a new installation of a HOG2 or 2x on a large freshwater sump. It still has the temporary black shade cloth on the lights to dim the 660nm deep red LEDs to a level that algae can start to grow; without the shade, the bright white Green Grabber growth surface would reflect back too much light for new algae to develop.

 

[SantaMonica]

This is a new installation of a HOG2 in a corner overflow. It still has the temporary black shade cloth on the lights to dim the 660nm deep red LEDs to a level that algae can start to grow; without the shade, the bright white Green Grabber growth surface would reflect back too much light for new algae to develop.