TDS Test PenProduct Description: The TDS Test Pen is a compact and accurate tool used to measure Total Dissolved Solids (TDS) in water. It helps determine the purity of water by detecting dissolved salts, minerals, and impurities making it ideal for aquariums, RO DI systems, drinking water, hydroponics, and more. With its easy to read digital display, fast results, and auto shut off function, this pen is perfect for hobbyists, aquarists, and anyone who values

Lighting: Prefers moderate to high lighting for optimal coloration

resistant to water damage

Dose Accordingly: Add 1ml per 10 liters of aquarium water (check label for exact instructions)

ensuring the air outlets are submerged to prevent noise

How to Use:

the HN 1200F is ideal for hobbyists looking for efficient performance and low maintenance

Usage: Works with phytoplankton

Combine with an open lid or mesh cover to enhance cooling effect

Use with a Pre-Filter: Helps in reducing debris buildup inside the pump

Pair with Proper Lighting:

Comprehensive Nutrition: Enriched with DHA

✅ High-Protein Formula – Helps accelerate growth and muscle development while maintaining a well-proportioned body