- Poseidon filter rocks and made from ammonia capturing zeolite to reduce ammonia levels in aquariums and ponds
- Enhances the startup and helps maintain biological filtration by providing a growth medium
- 100% natural Clinoptilolite zeolite
- Organic & all-natural; processed and produced in the USA
- 2" - 4" in size, roughly 25 pieces per package
- Poseidon filter rocks and made from ammonia capturing zeolite to reduce ammonia levels in aquariums and ponds
- Enhances the startup and helps maintain biological filtration by providing a growth medium
- 100% natural Clinoptilolite zeolite
- Organic & all-natural; processed and produced in the USA
- 2" - 4" in size, roughly 25 pieces per package