Re: Prototype - Green in Sump
Pardon me if I don't answer your question because I want to get straight to the point.
HMF is basically, a filter which utilizes the water circulation to feed the biological bacteria colonizing on the surface of the filter pad. It is more of a medium, to culture the essential bacteria necessary for the biological cycle to be stable. One key advantage of this filtration is that, the maintenance is really low. The HMF can continue for a long time before the pad becomes clogged and badly in need of a cleaning. I've even read from someone that he hardly clean his HMF for almost a decade! Just for that, I could imagine the endless possibility.
The drawback of this filtration however, is that, it takes up too much space, especially when tank space is a premium. Some people opt for something less conventional but still practical nonetheless and a curved one serve to preserve that. It doesn't compromise the surface area, only curved to provide more room for the fishes. Others think HMF as unsightly but this can be remedied by having the surface of the HMF planted with some creeping plants, like Java moss. Besides, it looks pretty neat too. Should you have done that, the principle is the same as your "marimo moss ball/Green in Sump" concept, more or less.
Last edited by Shi Xuan; 27th Dec 2012 at 00:22.
Currently keeping large predatory fish 🐟
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