Hi all,
Personally I'd try 90:10 RO:tap and see what the TDS value looks like, you definitely don't need more than 50ppm TDS from the tap (this has added Ca++ and HCO3- ions). Everything else you need is in the EI mix.
Have a look at <"Oh Wise ones - Is My Rising TDS.....">.
cheers Darrel
The rise in TDS is due to the both the "Seachem Equilibrium" and the buffers. Any compound that dissolves causes a rise in conductivity (TDS).I added as per instructions, and this is where I think I have gone wrong, added alkaline and acid buffers.The TDS is over 300, so not much different to tap......Do the buffers add significantly to the TDS?
No, you don't.Do I need them?
You don't need the Equilibrium either.I dose DIY EI from Aquarium Plant food.
I think that is a good idea, get acceptable plant growth and find a <"conductivity (TDS) datum">, once your happy with the plants you can add the fish. If you want a dash of dGH/dKH you can just add some tap water to your RO, if you want a more regulated approach you can use the formulae to create your own custom mix.I know cutting with tap is easier and cheaper, but thought I'd have a play whilst I have no fish.
Personally I'd try 90:10 RO:tap and see what the TDS value looks like, you definitely don't need more than 50ppm TDS from the tap (this has added Ca++ and HCO3- ions). Everything else you need is in the EI mix.
Have a look at <"Oh Wise ones - Is My Rising TDS.....">.
cheers Darrel