| Phosphate is regularly introduced into the aquarium through fish waste and the decomposition of fish food. While non-toxic for fish, high phosphate levels will promote the growth of undesirable algae, which will compete with more delicate marine animals adversely affecting the appearance of your aquarium. Excess phosphate is removed by partial water changes with phosphate-free water. Regular testing for phosphate will guide you as to when these water changes should be made. The Red Sea Phosphate Test Lab provides approx. 60 tests in fresh or marine water aquariums. |
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