Natural Stones for Peaceful, Beautiful Aquascapes
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Create a calm, natural look your fish will love.
These natural grey stones make it easy to build a peaceful, realistic aquascape in any aquarium. Each piece has its own shape and texture, so your fish get fun hiding spots and your tank gets a fresh, natural style. Great for freshwater and saltwater tanks.
Simple stones. Big impact.
✔ Adds a clean, natural look to your tank
✔ Offers safe resting and hiding spaces
✔ Works in freshwater and saltwater setups
✔ Helps support healthy bacteria
✔ Easy to place in any layout
Rinse the stones before placing them in your aquarium. Each stone measures about 4–8 cm.
We are proud to offer duty-free, reliable, tracked shipping— delivered to your door in over 200 countries worldwide!
Below you can check our average shipping times:
Domestic USA Shipping: 2-9 business days
US & Canada: 7-18 days
Europe: 7-18 days
Europe Plus*: 8-30 days
Australia, New Zealand: 7-18 days
Hong Kong, Singapore: 7-18 days
Rest of the world: 8-30 days
*does not include processing times up to 2 business days or longer in peak periods
Primarily we ship out from fulfillment centers in the United States, Eastern Asia and Western Europe. If the item you've purchased is out of inventory in your nearest location, we'll send it directly from our production lines at the same delivery times as stated in our shipping section.
Are these stones safe for all fish?
Yes. These natural stones are safe for most freshwater and saltwater fish when rinsed before use.
Will they change my water color?
No. The stones do not release dyes or colors into your aquarium.
Do I need special tools to set them up?
No. Just rinse and place them where you want inside your aquascape.
Gives your aquarium a clean, natural look with soft grey tones.
Helps shy fish feel calm and protected.
Creates surfaces where helpful bacteria can grow.
Great for building rockwork, paths, and natural scenery.
Safe for both freshwater and saltwater tanks.
A simple upgrade that makes your aquascape shine.
| Features | MK Aquarium | Knock-Offs |
|---|---|---|
| Natural stone material | ||
| Unique shapes and textures | ||
| Safe for freshwater and saltwater | ||
| Variety of sizes for easy layout | ||
| Supports beneficial bacteria | ||
| Clean grey finish | ||
| No artificial coatings | ||
| Ideal for aquascaping designs | ||
| Consistent quality selection |
Give them a quick rinse under clean water to remove dust. No soap is needed.
Yes. Their shapes make them easy to stack into natural hideouts.
They are natural stones and generally keep water conditions stable.
Yes. Shrimp and snails enjoy exploring the surfaces.
Only an occasional rinse during deep cleaning if they collect debris.
Yes. They pair nicely with plants, moss, and wood pieces.
Quantity varies by weight. Choose from 100g, 250g, or 500g packs.
Sure. Just move them gently to avoid stirring up too much debris.
Each stone is naturally shaped and colored, so slight variations are normal.
