Macroporous structure sintered quartz rings for marine and freshwater aquariums, ideal as a biological substrate to promote the development of beneficial bacteria without altering the pH of the aquarium. They do not release harmful substances for the...
Macroporous structure sintered quartz rings for marine and freshwater aquariums, ideal as a biological substrate to promote the development of beneficial bacteria without altering the pH of the aquarium. They do not release harmful substances for the...
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