Are you like me and annoyed by the RS ATO pump falling over in your ATO reservoir? Print this up, slide it on with the notches over the labels on the so you don't rip them then drop the hole setup into your ATO res. If the holder isn't quite tight enough just spin it a tiny amount until it tightens up on the label. I have been considering designing it with suction cups since this kinda moves around when there is enough water in the res.
https://www.printables.com/model/654368-red-sea-ato-pump-holder
Link to pump holder.
https://www.printables.com/model/654368-red-sea-ato-pump-holder
Link to pump holder.