A clear liquid-test tube is held beside an unmarked color swatch card near a planted betta aquarium.

API Test Kit Colour Chart Guide for Betta Tanks

ByKen

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An API test kit colour chart turns the colour in a test tube, or on a strip pad, into a number you can act on. This guide compares six items from Amazon that relate to colour-chart water testing for a betta tank: two single-test API liquid kits, one multi-test liquid set, two strip kits, and one holder that is an accessory only.

Every figure below comes from the listings. Where a listing does not say something, this page says not stated. Check which parameters each box covers before you buy.

Quick answer

For the clearest colour match while a tank is cycling, use a liquid kit with a printed colour card. The API nitrite kit is the simplest: one bottle, one colour card and one test tube with cap, 180 tests. The Pawfly 5-in-1 liquid set covers pH, nitrite, nitrate, ammonia and phosphate. If you want a fast weekly scan across many parameters, the SJ WAVE 11-in-1 and AAwipes 8-in-1 strip kits are quicker but harder to read between close colours. The PIAOLGYI item is a stand for API tubes and tests nothing by itself. For more kit comparisons see Best Freshwater Fish Tank Water Test Kit and Fish Tank Test Strip Color Chart.

How a colour chart works

With a liquid kit you add drops to a tube of tank water, wait the stated time, hold the tube against the white area of the card in daylight, and pick the closest colour block. With strips you dip, wait the stated seconds, then compare each pad to its own row on the chart. In both cases read at the stated time, in the same light, and write the number down. If a colour falls between two blocks, record it as between those values and retest the next day. Strip pads can bleed or fade if you wait too long.

Comparison table

Item What it covers Count stated Box contents stated Size and weight stated
API nitrite kit Nitrite, 0-5 ppm 180 tests 1 bottle of solution, 1 color card, 1 test tube with cap 1.5 x 2.38 x 5.13 inches; 2.4 ounces
API copper kit Copper, 0-4 ppm 90 tests Not stated in full 2.75 x 1.63 x 5.13 inches; 2.4 ounces
Pawfly 5-in-1 liquid pH, nitrite, nitrate, ammonia, phosphate 265 measurements Color-matching charts included 7.4 x 4.92 x 3.5 inches; 10.9 ounces
SJ WAVE 11-in-1 strips 11 parameters, pH range 6.0-8.0 150 count (title says 950 tests) Color chart, eBook, testing tubes Not stated
AAwipes 8-in-1 strips Free chlorine, nitrate, nitrite, hardness and more 50 strips Strips in a sealed bottle 5.39 x 2.13 x 2.09 inches; 2.39 ounces
PIAOLGYI holder Nothing (accessory) Not applicable Holder, stand and drying station for API Master Test Kit tubes Weight 0.16 ounces

API nitrite liquid kit

API Nitrite Test Kit, 180 Tests

This is a single-test liquid kit for freshwater and saltwater, made by Mars Fishcare. The box lists 1 bottle of testing solution, 1 color card and 1 test tube with cap. The directions say to test for nitrite every other day when a tank is first set up, then once a week after the biological filter is established in about 4 to 6 weeks.

Who it suits: a keeper cycling a new betta tank who will repeat the same colour match many times.

Pros

  • 180 tests from one box
  • One colour scale to learn
  • Stated range of 0-5 ppm

Cons

  • No ammonia, pH or nitrate card in this box
  • You handle drops and a tube

Skip if: you want a one-kit overview of many parameters.

View the API nitrite kit on Amazon (affiliate link)

API copper liquid kit

API Copper Test Kit, 90 Tests

This is a single-test liquid kit for copper. The listing says it detects copper from 0-4 ppm and suits weekly monitoring, times when water or fish problems appear, and medicating. Size is 2.75 x 1.63 x 5.13 inches and weight is 2.4 ounces.

Who it suits: a keeper who is medicating or wants to check tap water for copper.

Pros

  • Focused copper reading with a 0-4 ppm range
  • Small and light

Cons

  • No pH, ammonia or nitrite coverage stated
  • Cannot be your only kit

Skip if: you need general cycle tracking.

View the API copper kit on Amazon (affiliate link)

Pawfly 5-in-1 liquid set

Pawfly 5 in 1 Aquarium Water Master Test Kit

This multi-test liquid set covers pH, nitrite, nitrate, ammonia and phosphate and includes color-matching charts. The listing states 265 measurements in total: pH 100, nitrite 45, nitrate 50, ammonia 30 and phosphate 40. It is listed for freshwater and saltwater. Size is 7.4 x 4.92 x 3.5 inches and weight is 10.9 ounces. The number of test tubes is not stated.

Who it suits: a keeper who wants liquid colour matching for the main cycle readings plus phosphate.

Pros

  • Five parameters in one box
  • Charts included

Cons

  • Bottles, tubes and five charts take more time and space than strips
  • Fewer ammonia tests (30) than other counts

Skip if: you want the fastest dip-and-read routine or a pocket-size kit. If you mainly need ammonia, see Best Ammonia Test Kit for Aquarium.

View the Pawfly 5-in-1 set on Amazon (affiliate link)

SJ WAVE 11-in-1 strips

SJ WAVE 11 in 1 Aquarium Test Strips

This strip kit tests pH, carbonate, total alkalinity, free chlorine, total hardness, nitrite, nitrate, copper and iron, with a printed colour chart. The listing says pH range 6.0-8.0 and unit count 150. Its wording is mixed: the title says 950 tests and 150 strips, the components say 100 strips (50 in a bag, 50 in a bottle), plus a colour chart, an eBook and testing tubes. Rely on neither number alone and check the page for the current pack. It is described as suitable for betta tanks.

Who it suits: a busy keeper who wants one quick dip across many parameters.

Pros

  • Wide parameter list
  • Colour chart included

Cons

  • Strip and test counts disagree between title and components
  • Strip pads are harder to read between close colours

Skip if: you need sharp low-level ammonia or nitrite steps during a cycle.

View the SJ WAVE strips on Amazon (affiliate link)

AAwipes 8-in-1 strips

AAwipes 8-in-1 Aquarium Test Strips

This strip kit lists 50 strips and 8-in-1 testing, including free chlorine, nitrate, nitrite and hardness. The method is timed: dip for 2 seconds for pads 1 to 7, dip pad 8 separately for 5 seconds, then hold the strip horizontally for 30 seconds for pads 1 to 7. It comes in a sealed bottle and is listed for freshwater and saltwater. Weight is 2.39 ounces.

Who it suits: a beginner who wants a simple weekly scan for one betta tank.

Pros

  • Clear timed steps
  • Sealed bottle storage

Cons

  • Only 50 strips
  • A printed numeric range for each pad is not stated

Skip if: you want phosphate or copper on the same chart, or a large strip supply.

View the AAwipes strips on Amazon (affiliate link)

PIAOLGYI tube holder (accessory, not a test kit)

PIAOLGYI Holder for API Master Test Kit Tubes

This is a holder, stand and drying station for API Master Test Kit tubes. It contains no reagents and no colour chart, so it tests nothing. It is listed at 0.16 ounces. It is included here because it pairs with API tube kits, not because it is a kit.

Who it suits: a keeper who already owns an API tube kit and wants somewhere to stand and dry the tubes.

Pros

  • Light and simple

Cons

  • Not a test kit

Skip if: you need an actual test kit.

View the PIAOLGYI tube holder on Amazon (affiliate link)

Buying checklist

FAQ

Are liquid kits easier to read than strips?

Usually, for a single problem such as nitrite. Liquid cards tend to show fewer steps with stronger colour differences. Strips scan many parameters at once but the pads can bleed or fade if you wait too long.

How often should I test nitrite in a new betta tank?

The API nitrite directions say to test every other day when the aquarium is first set up, then once a week after the biological filter is established in about 4 to 6 weeks.

Does the PIAOLGYI holder test my water?

No. It is a holder, stand and drying station for API Master Test Kit tubes. It has no reagents and no colour chart.

Which kit covers ammonia?

Of the test kits here, only the Pawfly 5-in-1 liquid set lists ammonia, with 30 tests. The API nitrite and copper kits do not state ammonia coverage, and the AAwipes and SJ WAVE listings do not name it.

Why do the SJ WAVE counts not match?

The listing title says 950 tests and 150 strips, while the components list 100 strips split between a bag and a bottle. Check the product page for the current pack and rely on neither number alone.

What should I do if my fish look unwell?

A test kit only measures water. If your betta looks sick, ask an experienced fish keeper or an aquatic vet.

Closing note

Pick the API nitrite kit for cycling a new betta tank, the API copper kit only if you medicate or want to check tap water, and the Pawfly set if you want liquid cards for five parameters. Choose a strip kit for quick weekly scans. Check the product page for the exact box contents before you order.

Sources

Bài viết liên quan: Best Ammonia Nitrate Nitrite Test Kit for Betta Tanks, API Freshwater Master Test Kit Chart Guide and Alternatives.

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