Korallen-Zucht ZEOvit Zeolite Media

Korallen-Zucht ZEOvit is a carefully selected blend of natural zeolites for marine and reef aquariums. Together with ZEObak bacterial cultures and the ZEOstart carbon source, it forms the foundation of the Korallen-Zucht ZEOvit method.

The method is designed to support low-nutrient conditions similar to those found on natural coral reefs. Controlled nutrient levels can promote natural SPS coral coloration, healthy tissue, and balanced skeletal growth.

The material is placed inside a suitable ZEOvit reactor. Water should flow evenly from the bottom upwards through the media. The media is moved daily to remove accumulated detritus and bacterial biomass.

Biological nutrient management

The ZEOvit method combines zeolite media, selected bacteria, a controlled carbon source, and efficient protein skimming.

ZEObak introduces bacterial cultures, while ZEOstart provides a carbon source. The bacterial community processes nutrients and organic compounds. Bacterial biomass and captured nutrients are removed through protein skimming.

Some of the fine bacterial material released from the reactor may also provide food for corals and other filter-feeding reef organisms.

Nitrate and phosphate control

The objective is not to reduce nutrients as rapidly as possible. ZEOvit is intended to establish stable, controlled low-nutrient conditions.

Rapid reductions in nitrate and phosphate may stress corals, especially in established aquariums that have operated at higher nutrient concentrations.

When converting an existing aquarium, begin with a reduced quantity of media and conservative flow when necessary. Increase the system gradually according to water measurements and coral response.

Daily media cleaning

In a manual ZEOvit reactor, move the cleaning rod up and down several times each day. This releases detritus and bacterial biomass and prevents the media from compacting.

Daily cleaning:

• maintains consistent water flow
• reduces media compaction
• removes accumulated detritus
• releases bacterial biomass
• supports efficient reactor operation

Automatic reactors move the media according to their programmed schedule.

Flow rate

Maximum recommended flow:

400 litres per hour for each litre of ZEOvit media.

Excessive flow may make the system act too aggressively. Reduced flow can be appropriate during the transition of an established aquarium to the ZEOvit method.

Media replacement

Replace the media approximately every 6–8 weeks. The exact interval depends on aquarium load, flow rate, dosing, and nutrient conditions.

Partial replacement may provide a smoother transition than replacing the entire media quantity at once.

Rinse new media with clean water before placing it inside the reactor.

Key features

• Premium natural zeolite blend
• Developed for marine and reef aquariums
• Foundation of the Korallen-Zucht ZEOvit method
• Designed for use with ZEObak and ZEOstart
• Supports biological nitrate management
• Supports biological phosphate management
• Helps establish low-nutrient reef conditions
• Supports natural SPS coral coloration
• Supports healthy coral tissue
• Supports coral skeletal growth
• Suitable for SPS, LPS, and mixed reef aquariums
• Requires a suitable ZEOvit reactor
• Preferred bottom-to-top water flow
• Maximum flow of 400 l/h per litre of media
• Recommended quantity of 1 l per 400 l of system water
• Media should be moved daily
• Replacement interval of approximately 6–8 weeks
• Requires efficient protein skimming

Dosage

Use:

1 litre of ZEOvit per 400 litres of actual system water volume.

Approximate quantities:

• 100 l system: 0.25 l
• 200 l system: 0.5 l
• 300 l system: 0.75 l
• 400 l system: 1 l
• 600 l system: 1.5 l
• 800 l system: 2 l
• 1,000 l system: 2.5 l
• 1,200 l system: 3 l

Calculate the dose according to the actual net water volume after allowing for rock, substrate, equipment, and decoration.

Recommended flow

Maximum flow:

400 l/h for each litre of ZEOvit media.

Examples:

• 0.25 l media: maximum 100 l/h
• 0.5 l media: maximum 200 l/h
• 0.75 l media: maximum 300 l/h
• 1 l media: maximum 400 l/h
• 1.5 l media: maximum 600 l/h
• 2 l media: maximum 800 l/h

Instructions

1. Calculate the actual aquarium-system water volume.
2. Measure the required quantity of ZEOvit.
3. Rinse the media with clean water.
4. Add the media to a suitable ZEOvit reactor.
5. Keep the media completely submerged.
6. Use bottom-to-top flow when possible.
7. Adjust the flow according to the media quantity.
8. Do not exceed 400 l/h per litre of media.
9. Move the media daily in a manual reactor.
10. Dose ZEObak and ZEOstart according to their instructions.
11. Monitor nitrate, phosphate, and coral condition.
12. Measure the actual reactor flow regularly.
13. Replace the media approximately every 6–8 weeks.
14. Make only one significant system change at a time.
15. Avoid excessively rapid nutrient reduction.