Malachite Green is frequently used in conjunction with Formalin.
in most circumstances will not destroy biological filtration bacteria, although they may ‘knock the filter back’ for a short while. However, it is still advisable to turn off or by-pass the filter system for a few hours if possible and as with any treatment always turn off any UV lamps.
During prolonged treatments, especially when the filter has not been isolated, it is important to test for ammonia and nitrite on a daily basis in case the filter has been affected.
in alkaline water MG is converted to a colourless carbinol form. So in alkaline water it may seem that it has disappeared, but it is still present, but invisible!
Wear gloves and goggles when handling malachite green or formalin. Do not inhale the fumes of formalin and always handle in a well-ventilated area. Both are potentially dangerous. Malachite is a respiratory poison as well as being a suspected carcinogen.
Malachite green penetrates deeply into fish body tissues and may have a use against Proliferative Kidney Disease (PKD) in salmonids.
Malachite green is de-activated by light
Ensure the proper dosage. Follow the directions to the letter on the packaging, but make modifications for your puffer with some meds. (e.g. malachite green, methylene blue, and formalin need to be given in half dosage)
Carbon will filter it out almost as fast as you can put it in. Ditch the carbon. Don't bother trying to save it, that isn't where your beneficial bacteria llive anyway.
Quoted and repeated on purpose :
also should i half the dosage, are puffers sensitive to this stuff
Definitely.
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