Fluval Spec/Flex/Evo Ammonia Foam Insert Block
- Chemical filter media
- Removes toxic ammonia to prevent fish loss
- Supports a healthy environment when setting up a new aquarium
- Recommended for aquariums with higher than average fish stock
- Ideal for emergency ammonia spikes
- Reduces fish stress
- Ideal for use after medicating fish
- For best results, replace monthly or as required after testing water with your Fluval test kits
- Designed specifically for the Fluval Flex, Spec and Evo aquarium series
- Convenient 4 x Duo-Pack format