FritzPro Concentrated Chlorine Remover
A pH-buffered, sodium thiosulfate-based solution designed to immediately and safely remove chlorine and chloramine from tap water. Safe for all systems: freshwater, saltwater, planted, reef, and aquaculture.
Directions & Dosage
Use 1 teaspoon (5 ml) per 150 gallons (567 L). 1 fl oz treats 1,000 gallons. For smaller volumes, use 1-2 drops per gallon. This dosage will remove 1 ppm chlorine. For water with higher levels of chlorine and chloramine, increase dosage accordingly.
For best results, add Concentrated Chlorine Remover to tap water in a separate container before adding water to aquarium.
No equipment restrictions necessary.
| Volume | Recommended Dosage |
|---|---|
| 150 gallons | 1 teaspoon (5 ml) |
| 1,000 gallons | 1 fl oz |
| 1 gallon | 1-2 drops |
FAQ
Can this product be used in reef tanks?
Yes, FritzPro Concentrated Chlorine Remover is safe for reef tanks and all types of aquarium systems including planted and saltwater setups.
Does it affect water pH?
No, the product is pH-buffered and does not alter the pH of the water.
How long does it take to remove chlorine?
The chlorine and chloramine are removed immediately upon mixing with water.

Dylan Piper –
Used this in my 100-gallon reef tank after a water change. The chlorine was completely gone within minutes. No fish stress or color fading. Easy to measure and effective. Would recommend for any aquarium setup.
Austin May –
Great product for removing chloramine from tap water. I use it every time I refill my freshwater tank. Works fast and doesn’t change pH. Simple to use with just a few drops per gallon.
Richard Anderson –
Works well for removing chlorine, but I had to increase the dosage slightly for my high-chlorine tap water. Still effective and safe for my planted tank. No issues with fish or plants.