Does Virkon affect your biological filter?

This is all about testing if and how much Virkon ‘knocks’ your filter given it is a generalist disinfectant. In the experiment I find that a dosing of 5G per 5000 litres it has a similar effect as a single dose of 1.5mg of potassium permanganate slowing the filter from 3 days to 5 days to convert a set amount of ammonia to nitrate

[@MrSmithy63]

Great video , very useful , theres been a lot of questions on this in the koi social media world , now we now

[@K.W.P.R]

You use boiling water to dissolve verkon then add pond water to it and let it cool

[@davidporat7757]

Thanks for your videos and your time Are you familiar with the anoxic filtration ? And if you do?What do you think about the anoxic system Thanks David

[@thekoilab3944]

Hi - I’ve read about the concept but haven’t put into practice. Sounds interesting though. May be one for a future experiment!

[@lawrencemcnally3164]

Warm water for virkon

[@RamseysDIYKoiPond]

Very intresting video thanks for sharing 👍🐟