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Thread: SURF2 and SURF2

  1. #91
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    Here is a customer's old SURF2x in saltwater. This old model has the old light-frame which did not block the red light from getting out like the current models do. Light is the same though, pure red 660nm deep red, just like natural seaweed uses at the beach and reefs.

    Some people ask why the inside of the SURF is white, which you can see with the algae pulled out in the second photo. The reason is because white reflects the red light back to the algae at the farthest point away from the light, which is where the light would be weakest. As opposed to a waterfall, where light travels mostly through air, the growth in a bubble upflow scrubber has to go through algae most of the way. So reflecting it back to the algae keeps it brighter, using the same wattage light.

    The growth in this photo is almost all Cladphora. Add some vinegar and olive oil, and it's a great salad...

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  2. #92
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    This is a customer's SURF2 or 2x or 2xx that has been running for quite a while in saltwater. In this photo, the water has been drained out (unlike most floating scrubber photos) so the growth has settled on the bottom, and has mixed with some darker slime where the light is very low (lower light, with higher nutrients, makes dark slime). Also some brown slime is around the edge of the lid light, which is also a low-light area. The Green Grabber rocky surfaces hold on to the slime well.

    The strings can barely be seen, but are on the right side:

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  3. #93
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    This customer in the UK has growth that almost looks like green candy in this SURF2 or 2x or 2xx. This scrubber is probably only a few weeks old, because the white Green Grabber rock walls have no growth on them yet. But they will.

    This type of Surf growth is very rare, but the beauty of scrubbers is that they grow what they need to grow based on conditions. This one will probably start getting some brown slime on the Green Grabber rock walls, and then on the bottom underneath the green. If more food is given to the tank, the bright green will darken up to consume more of the nutrients (darker growth has more nutrients).

    Also very neat with Surf models with this growth, is that you can just reach in and get a handful. Then just set the light back on it, and you are done. Of course if you are getting dark slime because of very high nutrients in the water, you'll still need to take it to your sink for a brushing.

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  4. #94
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    Like instruction manuals? Here's ours for the SURF models..
    http://www.algaescrubber.net/SURF-Instructions.pdf

    Also in Arabic...
    http://www.algaescrubber.net/SURF-In...ons-Arabic.pdf

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  5. #95
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    This is not mud. It is living, growing, macroalgal slime that has consumed nutrients out of the water. The worm-like things are Green Grabber® strings attached to the bottom of the Green Grabber rocky walls.

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  6. #96
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    Update: Since the Fusion 700 air pump is no longer available, the Danner AP-4 is now recommended for most scrubbers, except the SURF4 or 4x which can use a Danner AP-8, and the SURF8 which needs a large single-outlet pump.

    Note that all HOG and DROP models have 1 air inlet, therefore the 2 outlets of the Danner AP-4 pump can be combined into 1 with a "T" or "Y" fitting, and this will give you a lot of air which can still be reduced with the control knob. If you don't want to combine the outlets, then the smaller Danner AP-3 pump has only 1 outlet, but it also does not have a control knob.

    https://www.dannermfg.com/supreme-ox...lume-air-pumps

  7. #97
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    The SURF2 scrubber® takes no space above or below it, so it fits almost anywhere.

    Click image for larger version

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  8. #98
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    Green Worms! Actually, this SURF2 or 2x scrubber® is just showing an ultra rare type of growth which "fluffs up" on the Green Grabber® strings. It's not better; just different. And it needs to be cleaned off of the strings using your fingers, in your sink, because you generally don't want to use a brush on the strings (although you can still brush the white rocky walls).

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