Instant Ocean Bio-Spira Water Treatment for Aquarium 250 Ml
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With patented nitrifying bacteria, BIO-Spira accelerates the establishment of the bio-filter in newly set up saltwater aquariums. The live bacteria start working immediately to provide a safe and healthy environment for your fish without the long wait. BIO-Spira can also be used after a water change, when adding new fish or after medicating.