Why surface cover matters
A floating plant layer can shade parts of an aquarium, but the layout should still leave accessible surface water and visible equipment. In a shrimp-focused aquarium, the choice should also support steady routines, visible livestock, and access for basic care.
Before you act, check how much of the surface is shaded and whether floating material gathers at one end. 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
use a ring or clear zone if needed, then adjust plant density as the aquarium grows. Make one adjustment at a time and watch how the aquarium responds during normal observation.
Avoid allowing plants to block the whole surface without observing the tank. 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.