Customer's SURF2 or 2x filling in
Customer's SURF2 or 2x filling in
Customer's SURF2 or 2x or 2xx filled in. This is with the water drained out. It is very thick and could be pulled out with your fingers.
Customer's DROP1.2x from a saltwater tank. Lots of slime, pulling out lots of nutrients, but needs brushing more often. Every 3 to 5 days probably. Also note the light brown spots where the strong red LEDs shine through the growth.
Customers DROP1.4x from saltwater, with unusually thick Cladophora growth all over, including on the Green Grabber® surfaces on the door. This growth is easily pulled out with your hands.
HOG3 or 3x or 3xx scrubber® showing what sometimes happens in very high nutrient water: Very dark/black slime oily growth has trouble holding on, and lets go, leaving white spots. The Green Grabber® rocky textures hold on as good as can be expected (much better than waterfall screens), but can be further helped by maximizing light to 24 hours, and brushing clean every 3 days. Here is more info on slime:
http://algaescrubber.net/forums/show...he-best-filter
All our upflow algae scrubbers® stay underwater all the time, so if the power goes out, the algae stays alive for a long time. And you can just let the fish eat the growth, so that you don't add new nutrients to the system when the power is out and there is no filtering. Pictured is a HOG scrubber® feeding some freshwater fish.
HOG3 or 3x or 3xx from a saltwater sump. Looks like the water level in the sump was very very low (the green part), or the air outlet hole at the top was blocked which caused the unit to fill with air and push the water level down. So this is a good example of how different light levels, and different nutrient levels, affect growth.
The upper part was out of the water, and only got slight spraying or splashing as bubbles popped at the top of the green area. So it got very little nutrients from the water. And, since there was no water to reduce light, the light was the strongest there. So you end up with very orange slime growth that can be peeled off with your fingers sometimes. It still does filter well if you remove it before it gets too thick.
The lower part was in the water, so it got lots of nutrients from the water, and a bit less light because of the water. So you get dark green growth. Darker has more nutrients but blocks light sooner, so if you clean it sooner then you can get more filtering.
So all types of situations and growth can grow and filter well.
HOG1x growth lifted up; was growing in a larger saltwater sump, but is used for free feeding.
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