PH Solution 15ml/0.5oz Use with Aquarium Carbon Dioxide Monitor CO2 Indicator
Features: brand new and high quality
High quality of materials.
Use with CO2 indicator.
Easy to use and convenient to detect concentration of CO2.
Suitable for all kinds of fish for .
Different color of liquid represents different concentration of CO2. BLUE means that CO2's concentration is too low; GREEN means it is normal; YELLOW means that CO2's concentration is too high so that it is harm to fish.

Specifications: Material: 4dKH/PH Solution
Color: As Pictures Show
Style: 1pcs/2pcs
Size (Approx.): 5x2cm/1.97x0.79in
Weight (Approx.):
1pc-25g
2pcs-50g
Capacity: 15ml/0.5oz

Package Includes: 1 x CO2 Indicator Solution (1pc/2pcs)

note: 1.Please allow 0-1cm error due to manual measurement. pls make sure you do not mind before you bid.
2.Due to the difference between different monitors, the picture may not reflect the actual color of the item. Thank you!