Striped Urchin Clingfish – Diademichthys lineatus
The Striped Urchin Clingfish is a small, unique marine fish native to the Pacific Ocean. It features distinctive vertical stripes that run along its body, giving it a striking appearance. This species is known for its ability to cling to rocky surfaces and coral using specialized adhesive structures on its feet.
Perfect for saltwater aquariums with stable water conditions, this fish thrives in environments with moderate to strong water flow and plenty of hiding spots.
| Specification | Value |
|---|---|
| Scientific Name | Diademichthys lineatus |
| Size (adult) | 2.5 cm |
| Lifespan | 5 years |
| Water Temperature | 22–26°C |
| Water pH | 8.1–8.4 |
FAQ
What is the ideal tank size for a Striped Urchin Clingfish?
A minimum of 20 gallons is recommended to provide adequate space and stable water conditions.
Can this fish coexist with other species in the aquarium?
Yes, it can live with non-aggressive, similarly sized marine fish, but avoid species that may nip at its fins or body.
How often should the water be changed?
Perform 10–20% water changes every 4–6 weeks to maintain optimal water quality.


Harry Scott –
The clingfish arrived healthy and stayed active in my 30-gallon tank. The stripes are very visible and it’s a great addition to the reef community. Easy to care for and doesn’t require much space.
Rose Mackay –
It’s a beautiful fish with a unique look. I noticed it clinging to the rocks and seems to be adjusting well. A little shy at first, but now it’s exploring more.
Jasmine Peters –
Perfect for a small marine setup. The fish is active and stays in one place without stress. Water parameters stayed stable after adding it to the tank.