FlairForm Pythoff

FlairForm Pythoff is an effective sterilising agent designed to ward off pests and disease in hydroponic systems. Once added to your nutrient solution, regular use of Pythoff will help protect your plants from a range of diseases, fungi, and parasitic organisms known to cause root-root, in particular pythium.

Although hydroponic systems are free from soil borne pests and diseases, the nutrient solution is often exposed to airborne pathogens that can cause major damage to your plants. Common pathogens that can cause havoc in hydroponic systems include pythium, phytophthora, and fusarium, all of which cause the roots to turn brown and eventually irreversible plant death.

Pythoff is safe and non-toxic and is non systemic which means it can be used safely from seedling to harvest. Although we would recommend halving the manufacturers dosage instructions until your young plants have fully established themselves.

Root rot is every hydroponic grower’s nightmare and can completely destroy an entire system in a matter of days. Pythoff is designed to combat root rot by preventing it in the first place. It can be used as a treatment for the very early stages, but as root rot can quickly cause havoc in your system we always recommend that it’s better to use this as a sterilising agent from the start.

Pythoff will sterilise anything it comes into contact with which means all drippers, reservoirs, and surfaces in your hydroponic system will be sterilised and protected from pathogens that affect hydroponic systems. Highly recommend to all hydroponic growers as Pythoff can be used safely in all hydro systems.

Key features of Pythoff include:


Stertilising agent suitable for all hydroponic systems
Can treat root rot if caught early enough
If used regularly will remain active through entire growth cycle
Suitable for use from seedling to harvest
Protects and prevents plants from harmful pathogens

Using Pythoff:


Pythoff is designed for use in hydroponic systems but it is unsuitable for use with coco-peat, wood-chip or soil-mix substrates as it kills the beneficial microbes in them. Add 2 ml of Pythoff per 10 Litres (use only half of this dosage for sensitive or weak plants) of reservoir size into 1 Litre of nutrient-free water and mix well. Add the dosed litre of water to your reservoir slowly over 30 seconds while stirring the nutrient solution. Immediately run the pump for 15 minutes to sterilise your hydroponic system. If organic additives are being used then wait at least 20 minutes after adding Pythoff before adding them to the reservoir. Re-dose your system once every 7 days. If being used to treat an on-going root-rot infection, discontinue the use of the organic additives and dose the system with Pythoff every day. For small, sensitive plants (e.g. lettuces, seedlings) use half of the stated dose. Pythoff is not compatible with beneficial bacteria/fungi additive products as it will kill the organisms in them.

Pythoff recommended dosage: 0.2ml/Litre

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FlairForm Pythoff

  • Product Code: FlairForm Pythoff
  • Availability: 100

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