What am i missing? 25L shrimp only tank : shrimptank(02)

What am i missing? 25L shrimp only tank : shrimptank(02)

Image gallery: Shrimp Only Tank

Beginning of my shrimp only tank. What y’all think? : Aquariums I decided to do a shrimp only tank : shrimptank What am i missing? 25L shrimp only tank : shrimptank