is this the correct thing to use? https://www.amazon.co.uk/d/Pet-Supp...al-management-500ml/B0002APIIW/?tag=ff0d01-20
Seachem Prime concentrated conditioner - 250ml https://www.amazon.co.uk/dp/B0002568S6/?tag=ff0d01-20
That bottle wpuld last quite a while. Get the 500ml bottle if you dpnt mind paying £6more
Edit: i think 250ml treats 10,000 litres according to amazon?! Bear in mind youll be using some every water change in the future








