Bobtastic
Member
A good question. I think you might need some if it is last that long, but I'd wait for the official response! 
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EI Mix with Tap Water
- Thread starter Bobtastic
- Start date
Hi all
I mix a 4 week supply in seperate bottles and have never had any mould/fungus issues in 2 years, and mine are kept in the cupboard under the tank
. Keeping the solution acidic prevents the reaction between PO4 and Fe in the Trace, P-Sorbate prevents the mould
I mix a 4 week supply in seperate bottles and have never had any mould/fungus issues in 2 years, and mine are kept in the cupboard under the tank
Other way round BobBobtastic said:
. Keeping the solution acidic prevents the reaction between PO4 and Fe in the Trace, P-Sorbate prevents the mould
Bobtastic
Member
Lol! Oooooops! Thanks for correcting me! 
Liquid carbon is also a pretty good item to use in the mix if you're experiencing mold. This is not really a big deal if it degrades because it kills everything in the bottle. Just add a few more drops a few weeks later. Acids will definitely corrode metallic parts of the pump if contact is made, but most of the pumps are made of plastic parts. Unfortunately, just about all of the convenient substances that kill mold/mildew/fungus also corrode metal.
Cheers,
Cheers,
