Biotec Magic Blue – 500ml

$49.95

or 4 payments of $12.49 with Afterpay

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Description

Blue colorant blocks sun UV light which makes algae grow.  Starves algae of food/reduces algae naturally.  Gives you a pleasant sky blue color if you have tank or pond lights on. It is not methylene blue or algaecide. Its fun ! Clears tanks & ponds.