Tetra EasyCrystal Filter Pack Carbon 250/300
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Activated Carbon Replacement Filter Pack — for EasyCrystal 250 and FilterBox 300
3 pieces per pack — ideal after medication treatments
✅ Difficulty: Easy — Old cartridge out, new one in. No tools required.
The Tetra EasyCrystal Filterpack Carbon 250/300 is the activated carbon replacement filter material for the Tetra EasyCrystal Filter 250 and EasyCrystal FilterBox 300. The built-in activated carbon adsorbs yellow discoloration, unpleasant odors, and dissolved impurities for extra clear and fresh aquarium water. Ideal after medication treatments to quickly remove residues. Contents: 3 pieces.
🔧 Product specifications
| Type | Replacement filter cartridge with activated carbon |
| Compatible with | EasyCrystal Filter 250 and FilterBox 300 |
| Adsorbs | Yellow discoloration, odor, and medication residues |
| Ideal for | After medication treatments |
| Contents | 3 pieces per pack |
| Replacement frequency | Every 4 weeks |
| Brand | Tetra |
🚚 Delivery & warranty
- Quick delivery from our store — ready to use immediately
- Shipping Tuesday or Friday → Read more about shipping
- Delivery with track & trace, usually within 1–2 working days
- Problem with your order? We'll solve it together. Contact us via our customer service.
- Free shipping for orders over €59,-
✂️ Usage tips
Replace every 4 weeks or immediately after a medication treatment. Remove the Carbon filter pack during medication treatments — activated carbon also adsorbs medications. Use the standard Filterpack 250/300 for daily use without activated carbon.
💡 Tip
Use the Carbon variant after medication treatments to quickly remove residues — then switch back to the standard Tetra EasyCrystal Filterpack 250/300 for daily use.
❓ Frequently asked questions
What is the difference from the standard Filterpack 250/300?
The Carbon variant contains extra activated carbon for chemical filtration. The standard Filterpack combines mechanical and biological filtration without activated carbon.
Do I need to remove the Carbon filter pack during medication treatment?
Yes — activated carbon also adsorbs medications and reduces the effectiveness of the treatment.
Have another question? Feel free to contact us — we are happy to help you make the right choice for your aquarium.
