You can buy the screen frames at a home improvement store along with the rubber spline. the get plastic netting or screening usually sold by the roll and use that. Just make sure there is adequate spacing in the screen or netting so that fish cant fit through. You also dont want metal mesh of course, not too sure about fiberglass over water, maybe if thats all thats available where you are you can post again here and see if its okay. I used plastic screening that I got from bulk reef supply which I dont think ships overseas. BUT if you call them they might do it since the netting is so light and small.
Just a thought.
180g Reef - 60g Rimless Reef -90G FOWLR- 125g Malawi Cichlids- 40b REEF- 34g Fresh Planted-working on- 20L FOWLR- working on
I have a mix of many different saltwater fish amongst my tanks, but I love my Tangs most of all.