Guides

Aquarium care guides

Browse practical guides for water parameters, maintenance, reminders, calculators, livestock tracking, and beginner aquarium workflows.

Aquatic plants in an aquarium for phosphate and planted tank nutrient review

Jul 14, 2026Water Parameters12 min read

Phosphate Levels in Planted Tanks: When PO4 Matters and When It Does Not

A practical way to read phosphate in planted aquariums without chasing a single perfect PO4 number.

Lush aquarium plants and fish for reviewing nitrate trends over time

Jul 10, 2026Water Parameters12 min read

Reading Nitrate Trends: How to Use NO3 Without Overreacting

A trend-based guide to using NO3 readings without overreacting, including timing, water changes, feeding, stocking, plants, and source water.

Aquarium fish and bubbles for nitrite spike monitoring during tank cycling

Jul 7, 2026Water Parameters12 min read

Nitrite Spike During Cycling: How to Track Recovery Safely

A cycling and recovery guide for reading nitrite with ammonia, nitrate, feeding, water changes, filter history, and livestock behavior.

Close-up aquarium fish image for ammonia spike and livestock stress tracking

Jul 3, 2026Water Parameters13 min read

Ammonia Spike in an Aquarium: What to Check First and What to Record

A safety-first response guide for ammonia spikes, with records that connect test results, livestock symptoms, filtration, feeding, and follow-up checks.

Planted aquarium scene used for algae troubleshooting and maintenance review

Jun 30, 2026Maintenance13 min read

Algae in a Fish Tank: How to Find the Cause Before Changing Everything

A troubleshooting guide for reading algae patterns through light, nutrients, CO2, maintenance history, plant growth, and livestock safety.

Close-up aquarium fish image for quarantine observation and health tracking

Jun 26, 2026Livestock12 min read

Quarantine Tank Tracking: What to Log Before Fish Join the Display Tank

A practical quarantine tank tracking workflow for observation, feeding, water quality, treatment timing, and transfer decisions.

Discus fish in a planted aquarium where CO2 and plant response are monitored

Jun 23, 2026Water Parameters12 min read

Aquarium CO2 Tracking: Log pH, KH, Plants, and Fish Safety

How to track aquarium CO2 in planted tanks using pH, KH, timing, equipment notes, plant response, and livestock behavior.

Goldfish swimming in a planted aquarium during feeding routine observation

Jun 19, 2026Livestock11 min read

Fish Feeding Schedule: How to Track Feeding Without Overfeeding

A practical fish feeding schedule workflow for tracking meals, appetite, waste, nitrate, algae, and livestock behavior.

Clear aquarium fish tank view for checking results after maintenance

Jun 16, 2026Maintenance11 min read

Aquarium Cleaning Log: What to Record After Maintenance

How to keep an aquarium cleaning log that explains gravel vacuuming, glass cleaning, filter work, algae removal, and tank response.