Java moss Ledge

I made a Java moss ledge for the Aquarium, I printed this in PLA and have been using it for 6 months with no problems. The suction cup hooking area needs to have a diameter of 5.7mm or just under ¼ inch to secure to the model Here is a link to the Suction cups that I used from Walmart , you can also use most medium suction cups with a little effort OOK Medium Suction Cup Hooks 6 Pack, Plastic, 9984761https://www.walmart.com/search?q=OOK+Medium+Suction+Cup+Hook+6+Pack%2C+Plastic%2C+9984761 If thi