Aquarium Care, Chemistry & Species Guides
Welcome to the FishyBizness knowledge hub. Whether you are setting up your very first aquarium, diagnosing sudden water parameter imbalances, battling stubborn nuisance algae, or perfecting species-specific breeding environments, our curated guides deliver reliable, practical advice.
Articles are organized below from Beginner Essentials down to Advanced Husbandry. Every guide is cross-referenced with our interactive aquarium calculators so you can calculate real water volume, chemical dosing, filter turnover, and safe stocking capacities with confidence.
Algae Control Guide
💡 Stop algae from overtaking your plants and glass by addressing the root causes: light, nutrients, and CO₂.
Identification and eradication tactics for Green Water, Black Beard Algae (BBA), Hair Algae, Diatoms, and Cyanobacteria, plus the best biological cleanup crews.
Cleaning Your Filter
💡 Prevents catastrophic biological cycle crashes by protecting the beneficial bacteria living inside your media.
How and when to service sponge, hang-on-back (HOB), and canister filters. Crucial rules on rinsing only with old tank water — never tap water.
Weekly Maintenance Routine
💡 A structured 30-minute weekly habit keeps water pristine, prevents algae blooms, and catches issues early.
The ultimate weekly maintenance checklist: quick parameter testing, substrate vacuuming, glass scraping, filter flow inspection, and visual health monitoring.
How to Do a Water Change
💡 The #1 preventative medicine in fishkeeping — safely removes accumulated nitrates and replenishes vital minerals.
Step-by-step guide to siphoning, gravel vacuuming, dechlorinating replacement water, and temperature matching to prevent shocking your fish.