Bacta-Boost is a super concentrated liquid beneficial bacteria supplement with hundreds of thousands more bacteria than certain other brands.
Bacta-Boost L supplies the beneficial microbes and enzymes required to break down waste and convert toxic ammonia and nitrites to nitrates. Aquarium plants and regular water changes then control the nitrates. For fresh and salt water.

Directions: For the first treatment, add 5ml to 25 litres of well aerated water. For subsequent treatments, add 5ml to 50 litres of well aerated water every 7 to 14 days, or with each water change. 1 litre treats up to 10,000 litres of water.