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according to the web site , We recommend that you use it a minimum of once a week, adding 10ml/100L (27 US gal) aquarium.
in the package there is a spoon included , does it mean i can dose one spoon per 100l of tank water ?
is it ok to dose it when the lights are off ?
in the package there is a spoon included , does it mean i can dose one spoon per 100l of tank water ?
is it ok to dose it when the lights are off ?

