Fritz Nature Box

Fritz Nature Box brings the blackwater look and benefits of a wild stream to your freshwater aquarium. It combines Indian almond (Catappa) leaves, sliced Catappa bark, and Casuarina cones, each releasing tannins and humic substances that tint the water, gently lower pH, and create a soothing, natural habitat. Ideal for betta, shrimp, and soft-water community fish. Explore more freshwater care.

Features

• A curated mix of Catappa leaves, Catappa bark, and Casuarina cones
• Releases tannins and humic acids for a natural blackwater environment
• Gently lowers pH and softens the look of the water
• Natural anti-fungal and anti-bacterial properties
• Encourages richer coloration and natural spawning behavior
• Great for betta, shrimp, discus, tetras, angelfish, and killifish

How to Use

• Add about one small leaf per gallon
• Add one bark stick per 10 gallons
• Add one to two small cones per gallon
• Replace pieces as they break down and the tint fades

Specifications

Recommended Pairings

• Condition new water with FritzZyme Turbo Clean
• Soften the slime coat further with BacterShield
• Browse more freshwater supplies

Frequently Asked Questions

Will it stain my water?
Yes, the tannins tint the water a natural tea color that many soft-water fish and shrimp prefer. Use less for a lighter tint.

Is it safe for shrimp?
Yes, the botanicals are shrimp safe and shrimp often graze on the biofilm they develop.

How long do the pieces last?
Leaves last a couple of weeks and bark and cones last longer. Replace as the tint fades.