Sold as freshly made 2% solution. Malachite can be used for the treatment of minor parasitic infestations. Mixing Formalin with Malachite is effective at treating most other microscopic parasites. Please ensure that you read,understand and follow, all safety guidelines included with your chemical product. Please do not eat,drink or smoke whilst handling chemicals. Wear disposable vinyl or latex gloves and appropriate eye protection
250mls treats 4400gals/20000 litres
500mls treats 8800 gals/40000 litres