Malachite green is an effective chemical treatment for fungal fish diseases and infections. The compound does not contain copper as many hobbyists believe. Malachite green is highly toxic. ... The compound will kill invertebrates such as snails and shrimp.

Is malachite green safe for invertebrates?

It is used at times for other protozoan freshwater pathogens as well as marine Ich/Cryptocaryon. ... Malachite Green is deadly toxic to all marine and freshwater invertebrates, algae, plant-life.

Is malachite green shrimp safe?

Malachite green will kill shrimp and riccia, so all plants are not safe.