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Collection: API Test Kits

API's liquid test kits and strips, covering freshwater, saltwater and reef tanks. Three master kits group the common tests into one box - Freshwater, Saltwater and Reef - and single kits cover ammonia, nitrite, nitrate, phosphate, calcium, alkalinity and GH/KH, with pH split into a low-range freshwater kit and a high-range marine one. Two strip products round it out: a 5-in-1 strip and an ammonia strip. A master kit is the usual starting point; single kits replace whichever reagent runs out first, so most people end up buying both over time.

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14 products

API Freshwater Master Test Kit

API Freshwater Master Test Kit

Regular price $46.50
Sale price $46.50 Regular price
API Ammonia Test Kit

API Ammonia Test Kit

Regular price $20.50
Sale price $20.50 Regular price
API GH/KH Freshwater Test Kit

API GH/KH Freshwater Test Kit

Regular price $15.35
Sale price $15.35 Regular price
API Calcium Test Kit

API Calcium Test Kit

Regular price $16.55
Sale price $16.55 Regular price
API Nitrate Test Kit

API Nitrate Test Kit

Regular price $17.95
Sale price $17.95 Regular price
API 5-in-1 Test Strips

API 5-in-1 Test Strips

Regular price $20.05
Sale price $20.05 Regular price
API Alkalinity (KH) Test Kit

API Alkalinity (KH) Test Kit

Regular price $10.70
Sale price $10.70 Regular price
API Saltwater Master Test Kit

API Saltwater Master Test Kit

Regular price $46.50
Sale price $46.50 Regular price
API Phosphate Test Kit

API Phosphate Test Kit

Regular price $19.40
Sale price $19.40 Regular price
API Reef Master Test Kit

API Reef Master Test Kit

Regular price $54.60
Sale price $54.60 Regular price
API Low Range pH (Freshwater) Test Kit

API Low Range pH (Freshwater) Test Kit

Regular price $9.60
Sale price $9.60 Regular price
API Nitrite Test Kit

API Nitrite Test Kit

Regular price $14.55
Sale price $14.55 Regular price
API High Range pH (Marine) Test Kit

API High Range pH (Marine) Test Kit

Regular price $10.45
Sale price $10.45 Regular price
API Ammonia Test Strips

API Ammonia Test Strips

Regular price $22.10
Sale price $22.10 Regular price

Master kits and single tests

API's master kits bundle the parameters most tanks need into one box, in Freshwater, Saltwater and Reef versions. The single kits exist because reagents run out at different rates — nitrate gets tested far more often than calcium in most freshwater tanks, and the reverse is true on a reef. Buying a master kit first and replacing individual tests as they empty is the pattern most aquarists end up with.

Liquid tests and strips

  • Liquid kits use reagents, a vial and a colour chart.
  • Strips are dipped and read against the label, with nothing to measure.
  • A 5-in-1 strip and a dedicated ammonia strip are stocked.
  • Reagent bottles carry batch dates — old reagents are a common cause of odd readings.

Testing a new tank

Ammonia, nitrite and nitrate are the three that matter while a tank is cycling, and all three appear in the freshwater and saltwater master kits. Once a system is established, testing shifts toward whatever you are dosing or controlling: phosphate and nitrate on a reef, GH and KH in planted or hard-water tanks. Follow the timing on each test exactly, since reading a colour early or late is the most frequent source of a wrong result.

J&L Aquatics was formed in December 1997

Our business was started from our love of the aquarium hobby. We at J&L Aquatics felt that the Canadian aquarist should have the option to purchase top quality supplies, equipment and livestock other than the generally over priced local retail stores.