Pure Quad 1l – pH-neutral ceramic filter cartridge
Neutral-pH biological filter media in a 1‑litre pack, with a nitrifying bacteria starter included. Intended…
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This 1-litre pack of NEO MEDIA PURE Quad is biological filter media for aquarists who want filtration without shifting their water chemistry. It is aimed at keepers of planted, shrimp, Malawi, Tanganyika and marine tanks, where pH stability matters for the fish and invertebrates. The bacteria starter is packed separately in the same box.
Why it matters
- Neutral pH: according to the supplier, the media keeps pH around 6 to 7 and does not noticeably raise pH in slightly acidic water or lower it in slightly alkaline water.
- Varied pore sizes: the structure contains pores of different sizes, which the supplier says allows different groups of bacteria to settle and develop inside the media.
- Stated surface area: the supplier gives a specific surface of 3600 m2 per litre, a figure that is the basis for its biological filtration claims.
- Starter bacteria included: a nitrifying bacteria culture, supplied as small black beads, is included in a separate packet and is meant to be mixed between the media in the filter to speed up start-up.
Specifications
- Brand: NEO MEDIA
- Model symbol: PREMIUM NEO MEDIA - PURE M QUAD 1L
- EAN: 8809702871985
- Variant: PURE (neutral pH)
- Volume: 1 litre
- Weight: 0.8 kg
- Supplier note: 1 litre of this media is stated to replace 10 litres of other media
What it works with
The media is listed for planted, shrimp, Malawi, Tanganyika and marine aquariums, including tanks with SPS corals. The NEO MEDIA range also includes SOFT and HARD variants for water softening and hardening; this listing covers only the PURE version. Its 1-litre volume is the quantity to match against the filter's media basket when planning a setup.
Technical specification
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Frequently asked questions
According to the manufacturer, this medium has only a slight effect on pH and keeps it around 6–7. It does not raise pH in slightly acidic water or lower it in slightly alkaline water.
The manufacturer states it suits planted tanks, shrimp tanks, Malawi and Tanganyika cichlid tanks, and marine tanks with SPS corals. Its neutral pH effect is the reason it is recommended for these setups.
This medium has pores of varying sizes, which the manufacturer says lets different nitrifying bacteria settle and develop. Fired ceramic media typically have pores of one uniform size, and the manufacturer reports a surface area of 3600 m²/l, based on tests by the Quantachrome laboratory.
Yes, the bacteria come in a separate package inside the box. They look like small black balls, and you add them between the ceramic media in the filter to speed up the start-up.
The manufacturer states that 1 litre of this medium can replace 10 litres of other media. This product is the 1-litre pack, and it is the PURE variant; SOFT and HARD versions are sold separately.
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