Doug (fishytime) also pioneered the coffee cup doser method if you're not wanting to spend the money right now. pop a small hole in the cup and let it bleed out into your sump or display. Might be a problem if we're only talking a few mL a day tho as it might just sit in the bottom of the cup.
When my demands were low I used my test kit syringes and did a morning and evening dose.
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