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* Quick disconnect valves for Eheim aquarium canister filters
Increases the concentration of calcium in marine aquarium water to provide corals and other reef-building invertebrates with one of the most important elements required for growth
Recurring problems with high nutrients can indicate overstocking
Giving a fish a dip treatment does no good if they go right back into infected water
EHEIM Classic Canister / External Filter: Proven technology
Seachem Flourite Black Sand Size:3.5kg * Quick disconnect valves forFlourite Black Sand is a specially fracted stable porous clay gravel for the natural planted aquarium. Its appearance is best suited to planted aquaria, but may be used in any freshwater aquarium environment. Flourite Black Sand is most effective when used alone as an integral substrate bed, but it may be mixed with other gravels. Gravel modifiers such as laterite are not necessary. Flourite Black Sand is not chemically coated or treated and will not
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