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FAQ: Is it possible to overdose Seachem PhosGuard™?

It is entirely possible to overdose activated phosphate absorption medias in the aquarium, and PhosGuard™ is no exception.  If phosphate-absorbing medias are overused, they can lower the phosphate so suddenly that sensitive aquatic organisms like corals and invertebrates can become stressed.  Additionally, PhosGuard™ is capable of producing aluminum oxide dust when overdosed or significantly agitated, and this dust can irritate the soft tissues of corals.  We recommend to dose according to published dosing instructions, replacing media as needed to keep up with phosphate or silicate in the system.

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