Expert guides compiled from the best sources in the reef keeping community. Everything you need to know about coral care, tank maintenance, and reef science.
Four sensor technologies compared, four brand-by-brand breakdowns, why dual-sensor redundancy prevents floods, six common ATO mistakes, and honest picks from nano to show-tank.
Titanium vs quartz vs inline heaters, the 3-layer redundancy stack that prevents boiled tanks, chiller sizing math, seven common mistakes, and picks from nano to 300+ gal in temperate + tropical climates.
The four reef controller platforms compared side-by-side with 2026 pricing, sensor recommendations, five automation rules worth programming, and picks from nano to 300+ gal show tanks.
The five tiers of the wave maker market broken down with real-world GPH, placement rules, seven programming modes, and honest picks by tank size — from Jebao to Abyzz.
Sizing with the head-loss rule, AC vs DC pros/cons, 14-model comparison table, noise and vibration solutions, and picks from nano to show-tank builds.
Step-by-step protocol for mixing saltwater, choosing the best salt mix for SPS/LPS/soft corals, water change schedules, target parameters, and troubleshooting — compiled from 20 expert sources.
PAR values for 30+ coral species, spectrum channel settings, LED product comparisons, photoperiod schedules, and new coral acclimation protocols — compiled from BRS, Top Shelf Aquatics, and 17 expert sources.
Six cycling methods compared (Fritz TurboStart, Dr. Tim's, live rock, and more), nitrogen cycle stages, ugly phase timeline, post-cycle stocking order, and 13 common mistakes — from 15+ expert sources.
24 species profiled across 3 tiers with PAR, flow, pricing, and care notes — from mushrooms to beginner SPS like Montipora. Plus placement zones, spacing rules, and nano reef picks.
Species-specific fragging techniques for 25+ corals, tool recommendations, glue-epoxy-glue mounting method, dipping protocols, healing timelines, and palytoxin safety — from 17 expert sources.
Five dosing methods compared with costs, DIY recipes (Holmes-Farley), dosing pump schedules, calculator links, and a method selection flowchart — from BRS, Reef2Reef, and 12+ expert sources.
Identify and treat every common reef pest: aiptasia, AEFW, montipora nudibranchs, vermetid snails, bristle worms, asterina starfish. Plus dipping products compared and biological control options.
Everything you need to start your first reef tank: equipment checklist with 3 budget tiers ($300-$4000), step-by-step setup, aquascaping tips, and a week-by-week first 30 days timeline.
Flow rates for SPS/LPS/soft corals, 3 powerhead placement patterns, gyre vs wavemaker comparison, popular product roundup, and a GPH calculator — from BRS, Reef Tank Resource, and more.
Step-by-step coral and fish acclimation protocols, 5 dipping products compared with dosages, quarantine tank setup, light acclimation schedules, and shipped coral recovery — from Top Shelf, Tidal Gardens, and more.
Printable maintenance checklist: daily 5-min checks, weekly testing and glass cleaning, bi-weekly water changes, monthly deep cleans, and quarterly equipment service — from BRS, TFH Magazine, and more.
Identify and treat 7 algae types: diatoms, GHA, cyano, dinoflagellates, bubble algae, bryopsis, plus coralline cultivation. Clean-up crew species guide with what each eats.
Three sources of coral color explained: zooxanthellae pigments, 85+ fluorescent proteins, and 24 chromoproteins. Plus how light spectrum, nutrients, and dosing affect coloration.
30 species across 3 tiers: beginner (clownfish, firefish, gobies), intermediate (tangs, wrasses, angels), advanced (anthias, leopard wrasse, mandarins). Plus compatibility chart and feeding guide.
ICP testing demystified: services compared (Triton vs ATI vs Fauna Marin), how to read green/yellow/red zones, critical elements table, common problems revealed, and action protocols.
How protein skimmers work, sizing by bioload, HOB vs in-sump types, top brands compared (Reef Octopus, Tunze, AquaMaxx, Bubble Magus), tuning, and weekly maintenance.
Three-chamber sump design, overflow types compared, refugium setup with chaetomorpha, return pump sizing formula, copepod cultivation, and common sump problems solved.
Broadcast vs target feeding techniques, 7 coral foods compared with particle sizes, amino acid supplements, species-specific feeding schedules, and overfeeding prevention.
Dry vs live rock comparison, negative space aquascaping (NSA), rule of thirds, 5 rock bonding methods, step-by-step build process, and nano tank scaping tips.
Identify and treat marine ich, velvet, brooklynella, flukes, bacterial infections, and HLLE. Full quarantine tank setup, copper protocol, and the truth about reef-safe treatments.
ATO systems compared, dosing pump setup, Neptune Apex deep dive (Trident, DOS, Fusion), automated water changes, leak detection, and 3 budget automation tiers ($100-$1500).
How 4-stage RO/DI filtration works, choosing by GPD rating, TDS monitoring, filter replacement schedule, proper storage, and booster pump tips.
How calcium reactors work, when you need one (cost crossover vs two-part), equipment list, media types, effluent tuning protocol, kalkwasser combo, and troubleshooting.
Best nano AIO tanks compared, stocking limits (1 fish per 5-10 gal), nano-safe corals, stability challenges unique to small volumes, and maintenance schedules.
7 anemone species profiled with difficulty ratings, clownfish hosting compatibility chart, placement tips, feeding schedule, splitting triggers, and troubleshooting.
Every CUC species profiled: snails (6 types), hermit crabs (4 types), shrimp, urchins, and more. Per-gallon stocking calculator for 10-120 gallon tanks.
Deep dive into reef chemistry: Ca/Alk saturation relationship, magnesium's crystal-inhibiting role, pH dynamics, nitrogen/phosphate chemistry, ORP, and 4 testing methods compared.
Hammer, torch, frogspawn, and octospawn care: PAR, flow, feeding, sweeper tentacle spacing, designer varieties (Holy Grail Torch $500+), fragging, and brown jelly disease prevention.
7 Acropora species profiled, designer varieties (Walt Disney, Oregon Tort, Hawkins), PAR 300-500, strict water params, dosing guide, RTN/STN causes, and AEFW treatment protocol.
Zoanthus vs Palythoa differences, 20+ named morphs with 4 pricing tiers ($5-$500+), PAR/flow requirements, fragging, CRITICAL palytoxin safety, and treating zoa pox and nudibranchs.
6 clownfish species profiled with designer varieties (Snowflake, Platinum, DaVinci), anemone hosting chart, tank mate compatibility, breeding basics, and brooklynella prevention.
Chaeto vs caulerpa comparison, 6 macroalgae species, refugium light setup (reverse cycle), harvesting schedule, copepod cultivation synergy, and caulerpa going-sexual risk.
Ideal temp ranges by coral type, heater sizing table, titanium vs glass, temperature controllers (Inkbird, Apex), chillers, budget fan cooling, and preventing heater disasters.
Major species and growth forms, designer morphs with Thai pricing, PAR by form, the Monti-eating nudibranch threat, fragging, and why Montipora is the beginner SPS.
Why Goniopora got the killer-coral reputation and how to beat it. Tentacle-count ID, designer morphs with Thai pricing, target feeding protocol, light/flow targets, and common-failure recovery.
Why designer LPS pricing skyrockets, the major chalice and Acan lineages (Master Splinter, JF Bizarro, Cherry Bomb, Rainbow Acan, Bowerbanki), care under low-moderate light, and the paper-thin chalice fragging technique.
The four major mushroom genera, Ricordea florida vs yuma identification, Bounce mushroom designer morphs (OG/Sunkist/Jawbreaker/Cherry Cordial), low-light/low-flow care, and propagation including the string method.
The three beginner-SPS pillar genera — Stylophora (Milka), Pocillopora (Pulsing Pocs), Seriatopora (Pink Birdsnest). Identification, designer morphs, red bug threat, and the natural progression from Montipora.
Open vs closed brain distinction, the major genera (Trachyphyllia, Lobophyllia, Symphyllia, Favia, Favites, Platygyra, Wellsophyllia), designer morphs like Master Splinter Brain and Rainbow Wellso, night-time sweeper feeding protocol.
The 6 major soft coral genera, pulsing Xenia behavior, allelopathic toxin warnings for mixed tanks, propagation including drop-and-grow Kenya tree, and why a soft-coral garden reef is the easiest beginner tank.
Identify and treat the most common coral diseases: RTN (rapid tissue necrosis), STN, brown jelly disease, bleaching, black band, dinos, and cyanobacteria. Includes the diagnosis framework and emergency fragging protocol.
The complete NPS coral guide. Tubastraea species, daily feeding protocol, dedicated NPS tank design, the sun coral nudibranch threat, and why non-photosynthetic corals require the deepest commitment in the hobby.
