Petshrimp.com Discussion Forum

Hi Mattias The design of the HMF, large filter volume and very small water thorughput, a little correction: not the volume but the surface is responsible for the efficiency(?)... By the way - only the first 2-3 cm (1.5 inch?) are populated by nitrite reducing bacteria. It's actually the surface are...

[quote="Neonshrimp"][quote]We always use motor pumps. These air-pumps are to loud for us :-D [/quote] It looks like with motor pumps it is more quite.[/quote] How do you mean? A centrigual pump is, if you dont use a venturi air injector, almost always more quiet than an airlift. Especially...

The "measurement" of filter efficiency, not counting clogging, is filtervolume times water throughput. Clogging leads to two effects in the filter, less water throughput and less space for nitrifying bacteria to colonize. The design of the HMF, large filter volume and very small water thor...

Hi all These filters are great. Several stroes in my area use hamburger matten filters in all their tanks. For economy they are powered by airlifts. The "bubbling" noise is unavoidable but with many tanks there's economy in buying a better airpump that makes less noice. Any small linear pi...