Ok tried the vinegar thing and no fizz it just sits there. I've unblocked the bottom of the pot and as I've changed a few things this week I will carry on and keep an eye on it to see if it starts to build again. Funny thing is that plant is the healthiest of the two!
It's great to be able to check these things out, so glad I found this place cheers everyone.
It's great to be able to check these things out, so glad I found this place cheers everyone.