Planted Tank Enthusiast
Join Date: Mar 2004
Location: Western Colorado
If this is the Hot Magnum 250 HOB, it doesn't work very well as a diffuser on tanks larger than about 50 gallons. To hold 30 ppm on my old 55 the filter would air lock about every two days. Now if this is a Magnum 350, cannister, I hear they work very well, but have never used one. I guess that if I had a 350 I would still use an inline reactor, be it be store bought or home made.
Currently tankless for the first time in 24 years... Getting the itch again