The Hydor Sintered Quartz Bio-Rings, 450 grams, are an ideal substrate for biological filtration. High surface area and the macroporous structure of the rings facilitates efficient growth of colonies of beneficial bacteria, both aerobic and anaerobic. Bio-Rings do not release phosphates or heavy metals and do not effect pH of the aquarium. For freshwater or saltwater aquariums.
- PH neutral
- High Surface Area
- Easy to Use
- Ideal for optimal biological filtration
- For use with any size Hydor Professional Aquarium External Filter
You can use Hydor Sintered Quartz Bio-Rings as a replacement media for your Hydor Professional Aquarium External Filter or with any other filter.
Fast Shipping and Professional Packaging
Because of our long-standing partnership with UPS, FedEx, DHL and many other top global carriers we are able to offer various shipping options. Our warehouse staff are highly educated to pack your items exactly according to the specifications we offer. Your goods are thoroughly checked and secured properly prior to shipping. We deliver to hundreds of thousands of customers daily in different countries. This shows our commitment to become the biggest online retailer in the world. These warehouses are located in Europe as much as they are in the USA.
Note: Orders with multiple items will have a distinct processing time for each item.
Prior to shipping the items, our staff will carry out an extensive inspection of the products you have ordered. Most orders are shipped within 48 hours. The delivery time varies between 3-7 days.
Returns
The inventory is always changing and we do not completely manage it because of the fact that many parties are involved, including our warehouse and factory. The actual stock levels can fluctuate at any time. Please be aware that it's possible that your order will become unavailable even after you have placed the order.
Our policy lasts for thirty days. If 30 days have gone in the past since you purchased, unfortunately we can't offer you a refund or exchange.
For your item to be eligible for return it must be in its original packaging, unopened and in the same state as you received it. It must also be in its original packaging.
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