[quote=“Cdangel0, post:9, topic:7924”]
Admittedly I missed your original presentation, and maybe this was covered, but what is the difference between an algae scrubber and a fuge with a great big ball of cheato or other macro-algae growing?
In my mind the premise of each is the same, utilize nutrients from the tank to feed the algae, remove the algae to eliminate the nutrients, rinse and repeat.
Does the algae scrubber do it more effectively? If so, why?
Aside from additional space required, and possible noise from the running water, are there any potential ill effects from running the scrubber as opposed to a skimmer and/or refugium?
What are your thoughts of the algae scrubbers that float in the sump with the led lights built in to the lid, or this hang on back model?
Yours appears to be quite large, as does Bill’s, could something this small be beneficial to say a 90 or 120g tank?[/quote]
Your right, refugiums and scrubbers work on the same principle and have the same advantages/disadvantages. The difference is access to nutirents (flow), light, and algae type. Algae scrubbers typically grow green hair algae which we all know is the first algae that appears once you get high nutrients. I’ve personally seen GHA all over a tank and nice green cheato surviving in the fuge, not growing much, but surviving. GHA is simply far better at removing nutrients that the macro algaes people put in there fuge. It grows faster and in thinner strands which drastically increased the surface area, ie. availability for nutrient uptake.
I’ve noticed no ill effects while running my scrubber for 3 years.
Waterfall scrubbers take up a lot of space, but the new ones that float or hang on the glass (HOG) are very compact. I’ve seen plenty of videos online of people pulling out a nice harvest from both designs. They work in a different way though. Waterfall scrubbers take in water and filter out slightly cleaner water, but at a high flow rate. SURF and HOG scrubbers take in tank water and spit out heavily filtered water, but at a low flow rate since there air powered.
Mines huge compared to most peoples scrubbers which is why I need to feed so much to keep it alive. I designed it so I could have lots of fish, but never purchased a lot of fish hahaha. By santa monica’s estimates, my oversized scrubber can extract 22 cubes of food per day given my screen area. That might seem rediculous, but I believe it given the slow, lack-luster growth I get by feed 4-5 pinches of flakes per day.