Who says Adding Bio Pellets to your system has to be expensive? Some reactors cost $300 -$400 This design I created will Hold 400-600 ml bio pellets and cost $30-40 See my other videos for how I made it. This can be run off a Maxijet pump or lower volume pumps.

Make sure you add bio pellets slowly, and that the output pipe goes directly to skimmer feed.

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