The SISO pH Tester is a reliable, Japan-formulated aquarium water quality testing kit designed to help fishkeepers quickly and accurately monitor water conditions. The kit includes five bottles of  testing liquid and a detailed colorimetric card, allowing hobbyists to test water parameters within just 3 seconds with up to 99.9% precision.

you can buy One ph test bottle and PH colorimetric card

1-10ml

The SISO pH Tester is a reliable, Japan-formulated aquarium water quality testing kit designed to help fishkeepers quickly and accurately monitor water conditions. The kit includes five bottles of  testing liquid and a detailed colorimetric card, allowing hobbyists to test water parameters within just 3 seconds with up to 99.9% precision. 5 Bottles and ph tester cards include.