Walk into any aquatics shop and you’ll find test kits for a dozen different parameters. For most fishkeepers, only a handful are genuinely essential day-to-day – here’s what actually matters and when.
The essentials for every tank
Ammonia, nitrite, and nitrate are the core three every fishkeeper should be able to test, particularly during the initial cycling period (see our nitrogen cycle guide) and periodically afterwards, especially after adding new fish or noticing any change in fish behaviour.
pH – useful, but read it in context
pH matters, but a “wrong” pH reading in isolation is less useful than understanding whether your pH is stable over time – sudden swings are generally more dangerous to fish than a consistently stable pH slightly outside a species’ ideal range.
GH and KH – essential for shrimp, useful for planted tanks
General and carbonate hardness matter enormously for shrimp keeping specifically (see our GH/KH guide) and are also relevant for planted tank health and CO2 stability.
Liquid tests vs test strips
Liquid reagent test kits are generally more accurate than paper test strips, which can be harder to read precisely and are more prone to error. For anything you’re relying on to make real decisions – like whether it’s safe to add fish – a liquid kit is worth the modest extra cost.
Getting the right kit
Browse a range of test kits and meters for freshwater and marine setups – including well-known brands stocked by Aquaview – in our Tests-Meters section on The Aviary Hub.
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