Seachem Glass pH Checker 25mm
The Seachem Glass pH Checker is a state-of-the-art device designed for monitoring pH levels in both freshwater and saltwater aquariums. It features built-in suction cups that securely attach to the tank surface, allowing for consistent and accurate readings.
The included sensitive indicating solution changes color when submerged in water, providing a clear visual signal of pH fluctuations. This helps aquarium owners quickly detect changes in chemical balance, especially important in planted tanks where pH stability is critical.
Designed for use in aquariums of any size, the pH checker has a diameter of 25mm and is ideal for maintaining optimal water conditions.
| Feature | Detail |
|---|---|
| Diameter | 25mm |
| Usage | Freshwater and saltwater aquariums |
| Indicator Type | Color-changing solution |
| Installation | With included suction cups |
FAQ
How does the pH checker indicate changes in pH levels?
The pH checker contains a sensitive indicating solution that changes color when submerged in water. This color shift reflects changes in pH, allowing users to visually monitor water chemistry.
Can the pH checker be used in planted aquariums?
Yes, the pH checker is especially useful in planted aquariums where stable pH levels are essential for plant health and growth.
Is the device suitable for both freshwater and saltwater tanks?
Yes, the Seachem Glass pH Checker works effectively in both freshwater and saltwater aquariums.

Dan Davies –
I’ve used this pH checker for three months now and it’s been very reliable. The color change is clear and easy to read. It helps me catch pH shifts early, which is great for my planted tank. The suction cups stay firmly in place even during water changes.
Sonia Kerr –
It’s simple to install and works well in my 50-gallon freshwater tank. I notice the color change when the pH drops slightly, which helps me adjust my water parameters in time. A small but useful tool.
Joanne Manning –
The device is durable and the color indicator is very sensitive. I use it daily and it’s become a habit to check the color before adding new plants or water. No false readings so far.