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Thread: Various upflow growth pictures

  1. #61
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    Another photo of two SURF2 or 2x or 2xx scrubbers from the UK customer above. Here you can see the white edges of the Green Grabber rock surfaces are much more covered in growth, which is the normal process because algae eventually covers all rough surfaces that have the proper light and air/water interface turbulence.

    Of more importance here, is the fact that there are two scrubbers instead of one. Two smaller scrubbers is always preferred over one larger one, because scrubbers actually remove nutrients from the water, but do so mostly when they are growing thick hair or thick slime algae. When you clean a scrubber all the way down to the white reflective surfaces, you don't have any more thick growth for a few days, and you will see the difference in how long your display glass stays clean and other ways. So by having a second scrubber that you clean on alternating schedules (one every 5 days, for example), you always have the other one growing thick and filtering.

    Other aquarium filters, however, such as protein skimmers, filter socks, etc, don't remove any nutrients at all, and thus it doesn't matter if you only have one of them because cleaning it won't change anything.

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  2. #62
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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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  3. #63
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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:

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  4. #64
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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 clean because the growth would stay so attached that all green and light brown 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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  5. #65
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    This HOG1 or 1x in saltwater shows a thick 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.

    Note also, the top part is still white where it was above the waterline. This recirculates water and nutrients inside, which helps it to grow in very high nutrient water. This customer also inserted tubing into the top, but this is not needed.

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  6. #66
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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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  7. #67
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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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  8. #68
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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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  9. #69
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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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  10. #70
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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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