Bring a Natural Splash of Color to Your Tank
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Brighten your aquarium or terrarium with smooth mixed stones that look great anywhere.
These Mixed Natural Rainflower Stones add a warm, natural touch to any aquarium, terrarium, or DIY project. Each stone is smooth, colorful, and sized just right at 3-5mm. They help anchor small plants, make your layout look clean, and give your fish tank a calm, natural feel.
Simple, colorful, and ready for any setup.
✔ Adds a natural look to aquariums and terrariums
✔ Smooth stones safe for fish and plants
✔ Sized 3-5mm for easy layout work
✔ Great for plant pots and craft projects
✔ Available in 300g, 600g, and 900g packs
Stones are 3-5mm and easy to clean with a quick rinse in clean water.
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 fish?
Yes, they are natural stones with smooth edges, so they are safe for most freshwater fish and plants.
Do the stones change the water color?
No, the mixed natural stones do not release dyes or cloud the water when rinsed before use.
What size pack should I choose?
The 300g pack is great for small tanks or craft work, while 600g and 900g are better for larger layouts.
The mixed colors bring gentle contrast that helps your aquarium or terrarium feel more alive.
The smooth finish keeps your fish comfortable and supports healthy plant roots.
The 3-5mm size spreads evenly on the bottom of tanks, pots, or craft trays.
A quick rinse is all you need to keep the stones looking fresh.
Made from natural stone that holds up well in water and daily use.
A natural, colorful upgrade for any tank or terrarium.
| Features | MK Aquarium | Knock-Offs |
|---|---|---|
| Natural stone material | ||
| Smooth edges safe for fish | ||
| Bright mixed colors | ||
| 3-5mm uniform sizing | ||
| Easy to clean | ||
| Multiple pack sizes | ||
| Great for terrariums and crafts | ||
| Stable base for plant roots |
Give them a thorough rinse with clean water to remove any dust, then place them directly into your tank.
Yes, they work well on top of soil, sand, or other gravel to add texture and color.
Small plants and cuttings settle in nicely, and the stones help keep roots stable.
Yes, they are smooth and safe, making them a great pick for bettas and other gentle fish.
Absolutely. Their size and color make them perfect for terrarium floors or drainage layers.
No, the stones are naturally colored, so they keep their look even after long-term use.
Yes, the natural weight helps them stay put during light maintenance.
Yes, they look great on top of soil and help hold small stems upright.
No, they are natural and neutral, so they do not change typical freshwater conditions.
