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Subject: Remineralisation
by paddington on 12/10/2011 13:49:48


Recently installed an RO unit under the sink - sick of to-ing and fro-ing between the LFS and my house especially now that my Bolivians are regularly spawning I have a need of more RO water for fry tanks.

The unit is giving me RO with a TDS of 10, pre-filtered water is measuring 380-405 TDS, with a GH of 18-odd. I am not using a DI to get it right down to 0, I think that would be overkill.

I mix it with tap water to get a kh of 5, gh of 8, ph 7.4 (using API test kits), but I'm wondering what sort of minerals I could buy instead to re-mineralise the water - and whether it would actually be worthwhile? I assume something branded for use with Discus would be the right sort of product?