EI dosing calculation

[Matt Warner]

Hi all, I have in the last month started EI dosing. I have a 125l tank and my dosing was as follows:
4tsp of potassium nitrate
1tsp of potassium phosphate
6tsp magnesium sulphate
500ml of water
20ml dosed 3 times a week
I now realise that this dosing is a bit lean as I have a lot of plants too!
I am now going to make a new mix which according to the EI calculator will give me 8ppm of nitrate with each dose and about 2ppm of phosphate. The new mix will be:
6tsp potassium nitrate
1tsp potassium phosphate
6tsp magnesium sulphate
Does this new mix sound good, I was having a small BGA problem on one of my plants which I think could of been down to the lean dosing.
Cheers

 

[Jim]

Whats the point of dosing lean EI?

The whole point of dosing EI is for the plants to have an excess of nutrients to draw on.

 

[ceg4048]

Yeah, those numbers are OK. I hope you didn't throw away the old mix. All you had to do was dose 30ml instead of 20ml 3X per week to have the same effect...

Cheers,