i check it every day either before or after i handle her if it does start to come loose i will take it all off and redo the entire top. also that top is only temporary till i get the 20-30g tank i got the 5g from a friend for free and he is the one getting the other tank for me. after i get the big one i am buying a lid for it so i can get a light and some kind of substrate besides paper towels at the moment.