Posted by @Chris_Lewis · 14h ago
Reef tanks are absolutely doable as a first saltwater project if you respect the one rule: stability beats speed. Here's an honest timeline.
Month 0 — setup and cycle. Mixed saltwater to the right salinity, live rock, heater, and a return/powerhead for flow. Then cycle it just like freshwater (ammonia → nitrite → nitrate), which the live rock helps along. Don't rush this.
Month 1 — cleanup crew and first fish. Once cycled, add a small cleanup crew (snails/hermits) and one or two hardy fish (a clownfish pair is the classic start). Feed lightly; let the system settle.
Months 2–3 — first corals. With parameters holding steady, start with the most forgiving corals: soft corals, zoanthids, and mushrooms. Now you begin tracking the reef trio — calcium, alkalinity, and magnesium — alongside salinity and nitrate/phosphate. Consistency in these is everything.
Months 4–6 — build out. As stability proves itself, add more corals (easier LPS), and as coral demand grows you'll start dosing or running equipment to keep calcium and alkalinity steady. Stock fish slowly to keep nutrients in check.
The mindset: test regularly, change a small amount each step, and never chase numbers with big swings — sudden parameter changes kill corals faster than slightly-off-but-stable ones. Saltwater costs and demands more than freshwater up front; the payoff is a living reef.
Your turn: tell us your tank size and equipment and where you are in the timeline — we'll help you plan the next safe step.