The EHEIM Undergravel filter forces a slight current of water to rise through the bottom gravel from below. As a result oxygen-requiring bacteria, which process all organic waste products to biologically harmless substances, settle there.
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The EHEIM Undergravel filter forces a slight current of water to rise through the bottom gravel from below. As a result oxygen-requiring bacteria, which process all organic waste products to biologically harmless substances, settle there. The bottom gravel will no longer become clogged, and as well as acting as an extra biological filter, it aslo encourages rich plant growth. The throughflow principe is suitable for all fresh- and sea water aquaria, particulary for planted aquaria. The undergravel filter is not intented to be used when keeping fish which stir up the water a great deal. Owing to its high effectiveness, the undergravel filter should be turned off when medication is used.
The basic set includes 24 plates 9x9 cm each. This is sufficient for an aquarium with 80x35 cm. The extention set 3545 is to be used for larger aquaria.
- Accessories for this article:
Please click the description in the table, or the number in the picture for selecting a spare part.
Nr. spare part 400351 EHEIM Shut-off valve 400394 EHEIM aquarium hose 400394 EHEIM aquarium hose 400398 EHEIM Reducing bash 400494 EHEIM aquarium hose 727115 EHEIM Attachment clip 727900 EHEIM Tubing 730625 EHEIM Connecting plate 730645 EHEIM Connecting pipe 3540 730650 EHEIM Through-flow pipe 730655 EHEIM Snap-in part 730660 EHEIM Adjusting disc 730670 EHEIM Clamping sleeve 730675 EHEIM Inlet Pipe 354500 EHEIM Extention set for undergravel filter -
Reviews for EHEIM Undergravel filter throughflow principle:
Write a reviewJurijs B. at 05.07.2018:
Danke!Jann I. at 04.08.2016:
Schnelle Lieferung. Bin mit der Ware sehr zufrieden immer wieder gerne
- John Robert W. wrote about EHEIM Undergravel filter throughflow principle in 2018:
Can I put some rocks on top or
only can be use with gravel?
Aquaristikshop.com: You can also place some rocks, bot not directly on the plates. Please use an Aquarium gravel with approx. 2-3 mm grain size as first layer.
Elina S. wrote about EHEIM Undergravel filter throughflow principle in 2018:
Hello, what kind of gravel suits for the filter? Which diameter? I'm looking for a bottom filter for Corydoras / Characidae breeding tank / quarantene aquarium? Now using an air filter which I think isn't efficient enough, but with it I can use fine sand.
Aquaristikshop.com: Also the EHEIM undergravel filter is not to be used with sand. You would need an gravel with a grain size of approx. 2-3 mm. Maybe you can use a second air filter or a more powerful one?- John Robert W. wrote about EHEIM Undergravel filter throughflow principle in 2018:
Can I put some rocks on top or
only can be use with gravel?
Aquaristikshop.com: You can also place some rocks, bot not directly on the plates. Please use an Aquarium gravel with approx. 2-3 mm grain size as first layer.
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Manual EHEIM Undergravel filter throughflow principle
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