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Thread: Various upflow growth pictures

  1. #51
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    Here is a common growth pattern, shown in a customer's SURF2 or 2x in saltwater. Some green hair is on the Green Grabber® strings, and some dark/black slime is on the Green Grabber rocks. Although there are some differences between the materials of the rocks and the strings, the main reason for the difference in growth is probably the proximity to the lights: More light is in the middle, and more light usually grows lighter/green color growth unless the nutrients in the water are too low:

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  2. #52
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    Here's a customer's HOG3 or 3x or 3xx in saltwater. The Green Grabber® strings are shown touching (and rubbing) the glass, and when bubbles are rapid this has the effect of cleaning growth off of the glass so that more light gets through.

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  3. #53
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    This is a HOG1x (you can tell by the black LED heat sink at the bottom of the left side) in saltwater. It shows a few interesting things:

    1. The growth is hand-harvestable (in saltwater) once you pull the inside part out of the water. For freshwater, you always need to brush it out with a toothbrush because freshwater growth is much thinner and more slimy.

    2. The growth is concentrated in the middle, where the red light is strongest.

    3. The growth is pushed up against the glass, preventing growth on the glass itself.

    4. The top 2 cm of the inside (wet) part is above the waterline; this recirculates water inside the unit which makes nutrients lower inside the unit than outside, and is great for high nutrient water. Also it runs more quiet because no air bubbles are rising up, and it keeps almost all salt spray inside.


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  4. #54
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    This customer's HOG3 or 3x or 3xx in saltwater shows a combination of slime and green hair. The Green Grabber® strings have most of growth here, and should be cleaned by scraping the strings. The Green Grabber rocks can just be brushed.

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  5. #55
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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.

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