Prepare the siphon
Use a narrow hose or a suitable intake guard and keep the outlet visible. A fine mesh can reduce risk only if it is secure and does not obstruct flow.
Check the hose for tiny shrimp before discarding removed water. Work over a clean container when the tank has many juveniles.
Move slowly through the aquarium
Target loose debris rather than aggressively vacuuming every plant and substrate area. Pause when shrimp approach the working zone.
Avoid creating a strong current that sweeps young animals away. A smaller controlled maintenance session can be easier than a large disruptive one.
Check replacement water
Use conditioned water prepared according to the product directions and keep temperature and chemistry reasonably consistent with the tank.
After maintenance, verify that the filter is running and observe the colony. If juveniles appear distressed, test the water and review the change.
Use these as general hobby references. Test your aquarium and confirm product guidance before making changes.