Maintenance • 2026-09-16
Green Spot Algae (GSA): Causes & How to Fix It
Green Spot Algae (GSA) forms hard calcified dots on glass and slow-growing plant leaves. Learn why low phosphate causes it and how a razor blade and nerite snails clear it.
Aquarium Guides & Insights
Page 2 of 6
Maintenance • 2026-09-16
Green Water Aquarium: Causes & Fastest Fix
Green water is a free-floating algae bloom that turns tank water pea-soup opaque. Find out what triggers it and the fastest proven fixes -- UV sterilizer and blackout.
troubleshooting • 2026-07-29
Cloudy Aquarium Water: 7 Causes, Fixes and When to Worry
Use the interactive decision tree to diagnose cloudy water by colour, then apply the right fix. Covers bacterial blooms, green water, substrate dust, tannins, diatoms, post-water-change haze and emergencies.
beginner-stocking • 2026-07-28
20 Gallon Fish Tank Stocking Guide: 10 Stocking Plans (with Bioload)
Ten stocking plans for a 20-gallon aquarium, with adult sizes, relative bioload, filter flow, and the fish to avoid.
Beginner Guides • 2026-07-28
How Often to Feed Fish
A practical guide to feeding aquarium fish, including the two-minute rule, how often to feed different species, and how to handle vacation feeding without causing ammonia spikes.
Beginner Guides • 2026-07-28
How to Acclimate New Fish
A decision-first guide to acclimating new fish: when to drip acclimate, float the cup, or plop-and-drop, plus common mistakes, quarantine, and a quick-reference checklist.
Beginner Guides • 2026-07-28
Planted Tank Basics
A beginner-friendly guide to starting a low-tech planted aquarium, covering the holy trinity of light, substrate, and nutrients.
Beginner Guides • 2026-07-28
Saltwater vs Freshwater Aquarium
A comprehensive guide comparing saltwater and freshwater aquariums: pros and cons, costs, equipment needs, stocking options, and a quick decision tool for beginners.
Equipment • 2026-05-19
Aquarium Filtration Guide: Types, Sizing, Media and Maintenance
How filtration works, how the six filter types compare, and how to size flow for your tank with a worked GPH example.
Equipment • 2026-05-19
Aquarium Floor Weight Guide: Is Your Tank Too Heavy for the Floor?
See how much common aquariums weigh in pounds, estimate footprint pressure in psf, and learn why those estimates cannot confirm a specific floor’s capacity.
Aquarium Business • 2026-05-19
Aquarium Insurance 101: What Does It Cover and Do You Need It?
A flooded floor or a dead prize fish can be devastating. Learn what aquarium insurance policies typically cover and whether adding a rider to your home insurance is right for you.
Equipment • 2026-05-19
Aquarium Lighting: Spectrum, Intensity & Photoperiod
A complete guide to aquarium lighting — from basic LED strips to high-output fixtures for demanding plants. How to balance light for health without algae.