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Aquarium Oyster Shell Chips 1kg pH Improvement Water Quality Improvement Oyster Shells Filter Media

★★★★★ 4.7 rating · 34 reviews · 337+ sold
$10.00 $13 30% OFF
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Product Details

Aquarium Oyster Shell Chips 1kg - pH Improvement, Water Quality Improvement, Oyster Shells, Filter Media

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■Product Description
These are Japanese oyster shell chips. They dissolve and neutralize when the water quality's pH leans towards acidic. The size is approximately 4-8mm. Please refer to the photos for confirmation.

■Notes
Please rinse once before use.
Handle with care as your fingers may get cut. Rapid changes from acidic to alkaline can adversely affect living organisms. Use in small amounts or return to near neutral by performing water changes before adding. Use at your own risk.

■Shipping
Shipping will be via Yu-Packet Post, and in some areas, it will be delivered the day after shipping. Shipping will occur the day after payment confirmation.
Collection may be delayed on weekends and holidays, potentially adding an extra day.

■Available Sizes
Oyster Shells: 500g / 1kg / 3kg / 5kg
*If you cannot find a size, please let us know in the comments.

■Combined Shipping
If you wish to purchase other items, please consult with us before buying. If possible, we will create a dedicated listing for you, and ship combined after your purchase. Discounts for combined shipping are ¥175 for Yu-Packet Post items and ¥700 for Otegaru Delivery. If combined shipping requires a larger package size, you will be responsible for the additional cost.

Category
Water Quality Management
Condition
New/unused
Shipping
Included in price (by seller)
From
Nagano

Daily Cleaning: Use a soft brush or damp cloth to gently wipe away dirt. Avoid harsh chemicals. For mesh areas, use diluted mild detergent and a soft brush.

Drying: Air dry in a cool, shaded place after cleaning. Avoid direct sunlight or high heat, which can cause fading and glue deterioration.

Storage: Stuff with paper to maintain shape when not in use. Store in a dry, ventilated area to prevent mold. Rotate between multiple pairs to extend lifespan.

Usage Notes: Designed for basketball. Not recommended for hiking, long-distance running, or other specialized sports where different performance features are required.

Customer Reviews (34)

4.7
★★★★★
Based on 326 reviews
5 stars
90%
4 stars
10%
3 stars
0%
2 stars
0%
1 star
0%
M
User6863594
★★★★★
2026-11-07

Everything was packaged well and arrived safely.