Description
Features:
Highly efficient biofilter media with massive surface area
Durable and long term usage for mare than 5 years, without losing its shape
Do not affect the pH and mineral balance
Suitable for hang in filter or over filter
Measurement: 4x4cm
ANS Nano Block 5 Biomedia for Compact Filters
These 4x4cm sintered blocks pack a huge internal surface into a cube that drops neatly into hang-on and over-tank filters, the formats many Singapore hobbyists run on nano and mid-size tanks. The block shape stacks without channelling, so water is forced through the porous body rather than around it, giving beneficial bacteria a dense home to break down ammonia and nitrite. The 2pcs pack suits a small HOB, while the 4pcs fills a larger media chamber.
The structure is durable and holds shape over years, so you are topping up rather than constantly replacing. It will not swing your pH or strip minerals, which keeps it friendly for planted tanks and shrimp colonies kept in our soft local water. In Singapore’s warmth the bacterial film matures quickly; seed the blocks with squeezings from an established filter to shorten the wait.
It sits among other choices in our filter media range. For setup, see our hang-on-back filter guide, our biological media comparison, and the nitrogen cycle explainer.

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