I got a diamond back Goby today and I know they're known for jumping. I have a glass top over most of the tank except the whole back by about 2inches because of the hang on back filter. Here I am lying in bed about to go to sleep when I hear all this splashing. Thankfully it tried jumping out where it was covered. So I thought it was only this once it won't try again. Well once again I hear splashing 5 mins later. Again tried jumping where is was covered. Fearing the third time would be the charm for him I put a temporary cover over the gaps for the night, but does anyone have a permanent solution I could do?