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Welcome to the community! Introduce yourself, stay updated on site news, or just hang out and chat about anything off-topic.

The heart of Living Reefs. Discuss saltwater fish, corals, invertebrates, and general reef-keeping advice for hobbyists of all levels.

The technical side of the reef. From water chemistry and algae control to DIY builds and equipment reviews.

Show off your underwater world. Start your tank build journal here or share your best livestock and reef photography.

A curated collection of essential guides, technical deep-dives, and legacy knowledge for the modern reefkeeper. From biological filtration to advanced husbandry, find the foundation for your reefkeeping success here.