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Anonymous
>>272081
I don't know what sort of filter bed the garnet is used for, but I worked as a lab tech in a company that produced and imported filter media, and I spent a lot of time analysing filter garnet for NATA certificates. The media we sold (anthracite, various grades of sand/gravel, garnet) was marketed and labelled as filter media- but then again, when I say filter media I'm talking about filter beds constructed for water and wastewater treatment facilities, obviously on a much more massive scale than your average fishtank. Some of the tests I performed required the media to be as clean as possible, meaning that I'd spend fucking HOURS washing garnet, compared to five or ten minutes washing sands or anthracite. It seems to me that the things that make it such a brilliant filter media would make it somewhat difficult to manage in a smaller fish tank; but again, I only handled it on one side of the equation. So I'm happy to be corrected.
And yes, despite everything, some of the finer grades of crushed garnet are quite beautiful.
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