TDS Pen for RO Water 

Easy to use TDS Pen for measuring 'Total dissolved solids' Popular for shrimp keepers when using RO water to check the TDS.

Why this is a must-have tool for shrimp keepers?

The TDS (Total Dissolved Solids) pen is an essential tool for shrimp keeping enthusiasts. This handy device allows hobbyists to accurately monitor water quality in their aquariums by measuring the concentration of dissolved substances, including minerals, salts, and impurities. Since shrimp, particularly sensitive species like crystal red and bee shrimp, can thrive only within specific TDS ranges, this pen provides invaluable insights for maintaining optimal water conditions.

For instance, Neocaridina shrimp can tolerate TDS levels of 150-300 mg/L, while Caridina species prefer lower levels of 100-200 mg/L. With a TDS pen, you can easily gauge the impact of fertilisers, track tank maturity, and ensure that new water matches existing levels during changes, thereby reducing stress during transitions.