cover

I have a 45 gallon tank and I am looking to replace the lid for it. I want a glass lid as I just bought a nice light that I can't use with a black lid. The lid dimensions would be 36" L x 12" W. I cannot find anyone selling what I need so I was thinking about making my own or doing it lidless...

I'm looking into getting a peacock eel for my 55 gallon aquarium, but the tank doesn't have a lid and has an overhead light. I've looked into ordering an acrylic sheet to go on top (I'm thinking 1/4" extruded acrylic although I really have no idea), but I'm not sure how I'd secure the sheet to...

If they're not the standard cover/condensation lid, what do you use? I would like images then I can get some ideas. Thanks in advance

I have a fluval edge 6 gallon that has a Hagen Fluval Edge Power Filter sorry, I don't know why my font went so large?! Anyway...I just got a teeny orange sunkist shrimp that could easily get sucked up into my filter. So for now I just tied a media bag over it. Which does the trick but...