Aquarium Fert Ratios

[Chris25]

Hi all,

I used to use aquariumplantfooduk for my fert needs but since it's closed down have got the components individually.

Potassium Nitrate: 1900grm POTASSIUM NITROGEN WATER SOLUBLE FERTILISER 13-0-46 | eBay
Potassium Phosphate: 1kg MONO POTASSIUM PHOSPHATE MKP 0-52-34 EXCELLENT HYDROPONIC FEED | eBay
Magnesium Sulphate: EPSOM SALTS | Food Grade | 250 500g 1KG 2KG 5KG 10KG 20KG 25KG Bath Salt Health | eBay

My old instructions said:
4tsp Potassium Nitrate
1tsp Potassium Phosphate
6tsp Magnesium Sulphate

Is it simply okay to use the same ratios of this stuff that I've got from ebay or would they need to be adjusted?

Thanks,
Chris

 

[John q]

Yes, just use the same ratios that you used for apfuk. The salts are the same.

Also the same supplier that i use for KNO3 & KH2PO4.