Fishician®A Fishician collection · 15 guides
Water & maintenance
Make sense of water tests, prepare replacement water and keep a useful maintenance routine.
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Search the whole libraryNew to this topic? Start with Using a test kit correctly, the first guide below.
Using a test kit correctlyExpiry, timing, honest colour reading and units.3 min read
Starting a saltwater aquariumSystem type, salt mixing and cycle checks for a marine tank.2 min read
Your tank's real water volumeThe number on the box is not the water inside. Measure it.2 min read
Cycling and water testingCheck the cycle with measured results before stocking.2 min read
Water parameters explainedWhat each reading measures and how they change each other.2 min read
Water changesWhat a change removes and how to do it safely.2 min read
Maintenance and observationA routine built around what the tank shows you.2 min read
Source water: tap, well, and purifiedChlorine, chloramine, well water and RO are different problems.2 min read
Aeration and dissolved oxygenHow aeration works and how to respond to distress.2 min read
Cloudy water: causes and fixesUse water tests and recent changes to investigate haze.2 min read
Algae causes and controlAlgae follows light and nutrients. Change the inputs.2 min read
Dosing safely from a labelA label gives a ratio. Scale it to your real volume.2 min read
Filtration explainedMechanical, biological, chemical: which media to protect.2 min read
Temperature and heatingMaintain a suitable temperature. Place heaters safely.2 min read
Reef tank basicsLive rock, measured salinity and what a skimmer removes.2 min read
Educational, not veterinary advice. Check species needs against current sources, follow the current label for any product, and see a qualified aquatic veterinarian for severe, urgent or uncertain health problems. How Fishician sources and reviews guides. Photographer credits and licenses appear beneath the relevant guide images.