I've foolishly ran out of my MgSO4 for my EI Dosing.
Until I get a new delivery of salts can I use some epsom salts I have left from my past Malawi cichlid tanks?
Pharmaceutical grade epsom salts. I'm thinking yes but wanted to double check just to be sure.
Just a little curious if the bottle of my dosing bottle is normal. Just refilling them and it seems to have stained the bottle.
Is this effecting the ferts going into my aquarium at all?