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I'm gonna try out a phosphate removing product can I run that in my 200 micron filter bag or no? I'd ask the same thing about carbon, if I ever needed to run carbon could I toss it in there?
You can use filter bags but they are not as effective as reactors. If you can't afford the reactors at the time you could always run a small pump with flex hose on it that ran thru the filter bag. Not a long term solution tho