Scraped this off the back of my 10 gallon nano. Tried to just use ceramic Magnets to allow to adhere naturally but consensus is that this is asking for trouble.
got after it tonight with the reef glue...have to press lightly but hold for 20-30 seconds but it will stick! Also have to make sure glass is clean first! Will slowly remove Magnets over next few days.
-Cliff “snacks”