Site pages
Current course
Participants
General
24 February - 2 March
3 March - 9 March
10 March - 16 March
17 March - 23 March
24 March - 30 March
31 March - 6 April
7 April - 13 April
14 April - 20 April
21 April - 27 April
28 April - 4 May
4.2.3 Filters
Conventional filters are usually designed on two working-principles: A. Aquarium water is siphoned into filter unit where it is allowed to slowly pass through one or more filter media before being pumped up or air-lifted and returned to the aquarium tank. B. Aquarium water is allowed to pass through the substrate at the bottom in a continuous circulation which is maintained either by air-lifting or by powerhead. Most filters combine filtration with aeration (for optimizing dissolved oxygen concentration of aquarium water). Various measures are taken for aeration. Canister Filter |
Last modified: Thursday, 17 November 2011, 6:24 AM