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This is quite simple: Unscrew the old cartridge on the air column
that ensures a section of your pond surface remains ice free and so allows the essential exchange of gasses and oxygen at the pond surface
The quick release tap system ensures fast
By "fluidizing" or suspending fine grained media in a column of water
The NT Labs Aquarium Lab Multi-test Kit comprises over 200 tests of the 6 key parameters to test in your aquarium
Pontec PondoClear 4000 Replacement Foam & Bio Balls Pack 21848 Cycling Filters This is quite simple: UnscrewPontec PondoClear 4000 Replacement Foam & Bio Balls Pack 21848 Genuine Oase pontec filter foams and bio media designed to fit the following filter: Pontec PondoClear 4000 (51226) Includes: Fine blue foam x 1 Coarse black foam x 1 Bio balls x 15 (approx.) Genuine Oase Pontec Foam Sets Pack of 2 filter foams & bioballs High quality filter foam media provides complete mechanical filtration Super porous foam material helps keep pond water crystal clear
