Plant filter for fish tank

Plant filter for my fish tank

It’s probably not the most efficient filter out there, but it is definitely better than the one that came with my fish tank. It consists of:

  • air pump
  • case with water intake and waterfall (I bought a fish nursery — it was much larger than a waterfall filter)
  • gravel
  • plants
  • plastic tube

The plants sit inside a piece of plastic tube, a bit narrower than the width of the case. Water inflow is done by simple air-lift. Incoming water flows into the tube with plants, goes down, washing plant roots, and then goes up between the tube and case walls, all the way through gravel. Finally is flows back into the tank through a waterfall.

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