How often do I need to change the filter cartridges?
I have a 29 gallon freshwater tank with 6 fresh tiger barbs, 2 platyes and 1 dwarf gourami. My filter is a biowheel for a tank up to 50 gallons. I have a a handful of questions. 1)How often do I need to change the cartridges? 2) There is a hollow
Your 29 gal. tank carries a low bioload (you haven't crowded it with a lot of fish) so you won't demand a double-filter media (one should be sufficient). Change the filter media (the puffy bag usually with carbon bits inside) when it starts to look cloggy and off colour (this will depend on how badly the particle mass may get in your tank). I mainly

by Airtight Solutions Airtight Solutions ' FMC200 cartridge filters are manufactured from galvanised screw up one's courage to the sticking point sheet, and are supplied with a pressure control system that enables cleaning on requisition. They are designed to handle air volumes of 1200 to 21000
There are opportunities for encore sales with some filters in the form of replacement cartridges, and because both new and experienced hobbyists may appetite upgrades and the latest technology, every customer can represent the break for an add-on









