SURF2

[SantaMonica]

Of all the bubble upflow designs, the SURF2 like this one is the easiest of all to harvest in saltwater; just lift up the lid and grab. Of course you can't do this when it's slime, or when it's new (which is usually slime)... these require a trip to the sink under running water.

 

[SantaMonica]

The six LEDs inside the submersible waterproof light of the SURF2x. No wasted light, just deep red 660nm.