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Thread: Various upflow growth pictures

  1. #61
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    To be notified when a new growth photo is posted, subscribe HERE
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    Here is a customer's DROP.6 on an early installation, probably just a few days. Can't tell if it's fresh or saltwater though, because the growth is very black slime which grows this way in very high nutrients anywhere.

    More important is to see how the growth follows the LED red light pattern, from the LED on the right, towards the left, as it widens.

    This 1-LED small scrubber may not be enough for the very high nutrients in this tank, but if the black slime is toothbrushed off in a sink often (like every 3 days), then nutrients may eventually come down in the water enough so that the the growth may turn into green hair.

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  2. #62
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    This customer's HOG1 or 1x in saltwater has a very thick clump of Ulva Fasciata, which can probably just be pulled out by hand instead of taking it to a sink. Or of course, just give it to the tangs and snails. If the main purpose is for feeding instead of filtering, then this growth will just flow out of the holes in the case, and the tangs will help by pulling it out. You could make the holes larger for this, just don't make them big enough for any animals to get inside:

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  3. #63
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    This HOG1 or 1x on a customer's saltwater tank show a typical growth pattern after it runs for 6 months or a year. Every single grain of white Green Grabber® surface has growth attached, and you would not be able to brush the surfaces totally clean, because the growth would stay so attached that lots of growth would remain. If a scrubber reaches this stage, then it will survive almost anything except completely drying out. And, our UAS® upflow scrubbers (unlike waterfalls) can never dry out, because they are always underwater:

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  4. #64
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    This HOG1 or 1x in saltwater shows a thick, dark slime. Slime pulls a lot of nutrients out of the water, but needs to be brushed out often so that the white Green Grabber rocks show again.

    It's thick growth like this which pulls nutrients away from chaeto, and can kill chaeto five times as big. This is also the growth which can grow right on the chaeto itself, out-competing it and keeping light from reaching the chaeto. Dark slime wins!

    Note that the top part is still white where it was above the waterline. This recirculates water and nutrients inside the case, which helps it to grow in very high nutrient water because the water rubs the algae repeatedly before exiting. This particular customer also inserted tubing into the top so the unit can be submerged without making bubbles in the rest of the aquarium, but this is not needed.

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  5. #65
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    This photo is of a UK customer's HOG3 or 3x or 3xx with really high nutrients in saltwater, which causes the dark growth. And the top part was out of the water, which acts as a bubble and salt-spray remover.

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  6. #66
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    Customer's SURF2 or 2x. Mixed dark and slime growth. That dark slime absorbs a LOT of nutrients from the water.

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  7. #67
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    Customer's HOG3 or 3x or 3xx that is still new and has not filled in the middle yet.

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  8. #68
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    Customer's HOG1 or 1x that could use less light, or some iron added to the water.


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  9. #69
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    Customer's two DROP1.2x units in freshwater. Really dark slime needs brushing off in the kitchen sink, preferably one at a time, so the other one still is growing and filtering.


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  10. #70
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    Believe it or not there is a HOG scrubber here:

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