Sera Spirulina Tabs Nature 0.5 oz
Sera Spirulina Tabs Nature 0.5 oz offers a natural veggie diet in the form of attaching tablets, free from artificial colors and preservatives. Ideal for herbivorous fish and invertebrates in both freshwater and saltwater environments, these tablets contain a substantial 24% spirulina algae to promote robust digestion and vibrant energy. This well-rounded food aids in healthy growth, enhances the fish’s stunning look, and encourages natural behavior. Crafted with care, the tablets can either settle at the tank bottom or be stuck to the aquarium glass with a gentle press, making it easy to observe even the most timid fish during feeding.
Product Specifications
| Feature | Detail |
|---|---|
| Form | Attaching tablets |
| Algae Content | 24% spirulina |
| Target Species | Herbivorous fish and invertebrates |
| Environment | Freshwater and saltwater |
| Artificial Additives | Free from artificial colors and preservatives |
FAQ
Can these tablets be used in both freshwater and saltwater tanks?
Yes, these tablets are suitable for both freshwater and saltwater environments.
How do I apply the tablets to the aquarium?
The tablets can either settle at the bottom of the tank or be gently pressed onto the aquarium glass for easy observation.
What is the spirulina content in each tablet?
Each tablet contains 24% spirulina algae.

Phil Roberts –
My betta fish has been eating the spirulina tablets regularly and seems more active and colorful. The tablets stick well to the glass, so I can see my fish eat without disturbing them. No fish have shown any signs of digestive issues after a week of use.
Karen Wright –
I’ve tried several fish foods, but these tablets stand out for their natural ingredients. My shrimp enjoy them and stay active. The spirulina content seems to improve their color and appetite.
Victoria Robertson –
The tablets are easy to apply and stay in place without falling apart. My cichlid has been eating them consistently and looks healthier than before. No artificial flavors or colors, which is a relief.