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clears quickly
3 organisers in each pack
If necessary
Potassium and Iron
Maxspect Nano-Tech Anaerobic Block (2 Blocks) other plumbing clears quicklyMaxspect Nano Tech Anaerobic Blocks are a new game changing innovation to "complete the nitrogen cycle" and compliment your filtration. Where the original Nano Tech bio blocks and spheres excel in housing aerobic bacteria these patented blocks excel at housing anaerobic bacteria. The denitrification catalyst supplied with the blocks increases the bacteria production within the massive surface area and ideal living conditions on the inside of the
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