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For those who needed the claims to be published of the lateral slot in the water distributor tray sitting on the main body, they were published today by the patent office: Patent Center PatentCenter UI patentcenter.uspto.gov and a copy of the pdf is here...

Here is a diagram showing three different Santa Monica Filtration waterfall versions available for DIY or manufacturing. The first waterfall version on the left is the "standard" one I designed in 2008 and donated as free open source to the public domain for others to build; you can see one of...

The great thing about a scrubber is that it grows exactly what many fish eat naturally. Even fish that you think would not eat algae, such as cichlids, will do so if the growth is living. But many freshwater and saltwater fish and other animals love it. It's similar to a garden, where you eat...

Don't buy fish food. Don't replace filters. Instead, use your filter to feed your fish. MaramotReef on IG shows how it's done: o The living, green growth can be put right into a fish feeder. o The black tray is level with the sump waterline; this eliminates all sound when the dome lid in put...

The word "nutrient" and "nutrition" are commonly confused when talking about reefs. "Nutrition" is just like food; it feeds the fish and the corals and the microbes. Nutrition include fish waste, coral slime, leftover food particles, algae (yum sushi), vitamins, and amino acids. This nutrition...

What is Periphyton? Periphyton is what turns your rocks different colors. You know... the white rocks you started with in saltwater, or the grey rocks (or brown wood) you started with in freshwater. After several months or years, the rocks become a variety of different colors and textures. Why...

About as nutritious as it gets...

The Danner AP-4 is a good pump for most scrubbers. Has a control knob too.

inside this...

http://algaescrubber.net/forums/showthread.php?3770-Customer-comments-of-HOG3xx-HOG3x-HOG3-HOG2x-HOG2-HOG1-3

What can it be...

Occurs in fw and sw:

Anyone guess what the different conditions are above and below the water line?

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...

Customer's GEM5® lights pulled out of a saltwater sump. Although growth usually grows on a screen or other growth surface, sometimes the growth grabs on to the light itself.

Anyone want to guess what happens if you put these lights underwater?