New to Reefing
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Reef Safe Fish for Beginners
The reef safe fish that actually work in a first coral tank, the ones to skip, and how to stock them.
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The Beginner Coral Guide
Corals I Would Actually Recommend for Your First Reef Tank Walking into a coral shop for the first time can be overwhelming. There are hundreds of colors, names and varieties. One person tells you a coral is easy. Somebody else tells you it’s difficult. You start reading about PAR, alkalinity, calcium, magnesium, flow, nutrients and…
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How to Buy Coral Online Safely: A Reef Keeper’s Guide
Buying coral online can feel like a leap of faith — you’re trusting a living animal to a box, an overnight flight, and a seller you may never meet. With a little know-how, ordering coral online can be safe and can give you access to exact-photo pieces beyond driving distance. Here’s how to evaluate the…
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Live Rock vs. Dry Rock: Pros, Cons, and the Hybrid Method
Every reef tank needs rock — it’s the structure your coral sits on, the surface your bacteria colonize, and most of your tank’s biological filtration in one package. The question is where that rock comes from: pulled straight from the ocean as live rock, or purchased bone-dry and built up from scratch. Both routes work,…
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Water Changes: How Much, How Often, and Why Twice a Month Beats Once
Water changes are the one piece of reef maintenance nothing else replaces — no skimmer, refugium, or dosing routine fully substitutes for physically removing old water and putting in fresh. The question isn’t really whether to do them, it’s how much and how often. And the answer is almost always: less at a time, more…
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Reef Tank Water Chemistry for Beginners: Salinity, Alkalinity, Calcium & More
Once your tank is cycled, water chemistry is what keeps it stable long-term. None of these numbers matter in isolation — what matters is consistency. Here’s what each parameter actually does, the ranges we target, and when to test for it. Salinity The Purpose of an ATO Alkalinity Calcium Magnesium Trace & Macro Elements Nitrate…
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How to Cycle a Saltwater Reef Tank: The No-Guesswork Guide
What cycling actually is, what the ammonia-nitrite-nitrate curve looks like, how long it really takes by starting method, and the mistakes that restart the clock.