Why decorative finishes matters
A decorative finish can hide material details that matter in an aquarium, especially when the object was not designed for aquatic use. In a shrimp-focused aquarium, the choice should also support steady routines, visible livestock, and access for basic care.
Before you act, check the manufacturer's intended use and any ingredients in the surface treatment. Compare the item with the rest of the setup and note any recent change that could affect what you are seeing.
A careful way to proceed
replace unclear decor with a documented aquarium product. Make one adjustment at a time and watch how the aquarium responds during normal observation.
Avoid guessing from smell, color, or a short marketplace description. Labels, products, and tank conditions differ, so use a reliable guide as context and record what you directly observe. If uncertainty remains, ask an experienced shrimp keeper before making a consequential change.
Use these as general hobby references. Test your aquarium and confirm product guidance before making changes.