Reefstead
Expert reviews, honest comparisons, and the best deals on Reef Aquariums — helping you make smarter buying decisions.
Latest Reviews
Zoanthid Care: Colors, Growth, and the Palytoxin Warning
Complete zoanthid care guide: light and nutrient targets, feeding, pests, the morph market, and the palytoxin safety protocol every zoa keeper must follow.
Best Coral Fragging Kits & Propagation Tools
Coral fragging kits and propagation tools compared — starter kits, premium tool sets, frag racks, and dip kits — with the hygiene rules that keep frags alive.
Why Is My Saltwater Tank Cloudy? (4 Causes, 4 Fixes)
White haze, green tint, or dust clouds? Diagnose cloudy saltwater by color and timing, then fix the real cause — sand, bacteria, algae, or flow issues.
12 Best Beginner Saltwater Fish (Hardy, Peaceful, Reef-Safe)
Twelve hardy, peaceful, reef-safe fish that survive beginner mistakes, plus the popular species to skip, stocking order, and how many fish your tank holds.
Best Auto Top-Off (ATO) Systems
Auto top-off systems compared — optical-sensor ATOs, float valves, and dual-sensor alarm units — chosen by failure mode, plus reservoir sizing that's safe.
Why Does Alkalinity Keep Dropping? (Consumption, Explained)
Falling alkalinity means your reef is growing. Learn where alkalinity goes, how to measure daily consumption in four days, and how to match dosing to it.
Why Are My Corals Not Opening? An 8-Step Diagnostic
A systematic 8-step diagnostic for closed corals: recent changes, water tests, nighttime pest checks, flow, light shock, coral warfare, and fish behavior.
Alkalinity vs. pH: What's the Difference in a Reef Tank?
Alkalinity and pH are related but measure different things. Learn what each number means, how CO2 links them, and which one to act on when corals struggle.
Two-Part Dosing for Beginners: Setup, Math, and Ramp-Up
Two-part dosing for beginners: measure your reef tank's alkalinity demand, calculate exact daily doses, and ramp up safely by hand or with a dosing pump.
Aiptasia: Every Removal Method, Ranked by Ruthlessness
Every aiptasia removal method ranked: berghia nudibranchs, peppermint shrimp, injection, lasers, and what never works — plus why cutting them backfires.
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