A lot depends on the additives you dose!
Some contain additives while others don't and need additions.
Also, be wise as to what products you choose to dose, make sure there is stock readily available.
For example, I used Fauna For awhile, but ever time I needed to replenish, the supply was not available and I had to wait for stock or order from the U.S. and that usually means substituting something else and there goes consistency.
R.
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