Seiryu Stone | Aquarium Stone
Seiryu stone is one of the most beautiful rocks we have ever seen here at Flip Aquatics. The rock ranges from a deep grey-blue to a blackish grey. The layered appearance makes Seiryu stone great for creating master piece aquascapes. Since the stone has some white mineral veins (calcium deposits) running through it, the Ph in your aquarium most likely will rise. You can combat this by adding in driftwood or other natural products like Indian almond leaves or alder cones. Seiryu stone is rather heavy so it is important to make sure it is secure in your aquarium. Falling pieces could damage your aquarium.
For best results we recommend rinsing the rock before adding to an aquarium. Although they are clean, it is natural for rock to create additional mineral deposits over time.
| Feature | Detail |
|---|---|
| Color | Deep grey-blue to blackish grey |
| Appearance | Layered with white mineral veins |
| Weight | Heavy; requires secure placement |
| PH Impact | May increase pH due to calcium deposits |
| Preparation | Rinse before use |
FAQ
Will Seiryu stone raise the pH of my aquarium?
Yes, Seiryu stone contains white mineral veins (calcium deposits) that can raise the pH of your aquarium over time.
How should I prepare the Seiryu stone before placing it in my aquarium?
Rinse the stone thoroughly with clean water before adding it to your aquarium to remove surface debris and dust.
Is Seiryu stone safe for use in a planted aquarium?
Yes, it can be used in planted aquariums, but monitor water parameters closely due to potential pH increases. Consider adding driftwood or natural leaf products to balance the water chemistry.



Kimberly Skinner –
The Seiryu stone adds a stunning visual depth to my tank. The layered texture and mineral veins are very natural-looking. I rinsed it before use and have noticed a slight pH increase, so I added Indian almond leaves to balance it. It’s securely placed and hasn’t shifted at all.
Max Ince –
Beautiful rock with a unique color and texture. I used it in a mid-sized planted tank. After a few weeks, I checked the pH and it went up a bit. I adjusted with alder cones and now it’s stable. The stone is heavy, so I made sure it was anchored properly.
Gavin Newman –
This stone is exactly what I was looking for to create a more natural aquascape. The grey-blue tones blend well with my plants. I rinsed it thoroughly and it looks great after installation. No issues with stability or water chemistry so far.