Ferts Stock Solution Question

[Man of fish]

I'm planning to premix my ferts but the calculator I used is telling me how much mgSO4 to use and no K2SO4 where as I read I wouldn't need the mgSO4 since I have hard water and to use the K2SO4 instead. So how much should I use when premixing?

 

[brian1]

When you read something like this,you realise how much you have to learn.......... that's me.....lol

 

[tribalbrit]

55g per 500ml.. then dose 40ml per 100 liters. from memory.

 

[Man of fish]

Ok thank you. That's 55 grams of the K2SO4 per 500 ml right?

I'm mixing the macro solution and it says 31 g KNO3, 12 g of KH2PO4, and 74 g of mgSO4 per 1,000 ml so that sounds about right for the K2SO4.

 

[tribalbrit]

yeh I think thats about right... I stopped mixing solutions I just add the salts straight to the tank now, much easier.

 

[Man of fish]

Ok thanks.