Reef2Reef is the central reef-keeping reference community. What it is: forum-based site (founded 2011) with 200,000+ members, dedicated subforums for SPS, LPS, soft corals, anemones, fish, plumbing, chemistry, DIY, and vendor reviews. Why it matters: 1) build threads document multi-year tank progress with photos, parameters, and lessons learned - irreplaceable resource. 2) vendor reviews + warning threads expose bad actors. 3) sponsored brands (Triton, Reef Octopus, Nyos, AquaIllumination) participate directly in support threads. 4) coral identification + disease threads regularly include experts. Other major communities: ReefCentral (older, smaller now), local reef clubs (BAR, MASLAC, BRK), Facebook reef groups (varied quality), r/Reefkeeping subreddit. Quality signal: R2R tends to have higher technical depth than Facebook groups, with verified vendor responses + multi-year archives. Caveat: beginner advice quality varies - cross-check with experienced members.
Reviewed by the Fast Aquatics husbandry team · Updated May 2026
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