Hi, not sure if I'm posting this in the right spot, but the other tank forum said betta tank so here we go. I just upgraded my goldfish to a 55 gallon tank, and the glass lid I got for it is actually sized for a 29/37. Now when I've been shopping around for appropriately sized lids, it's been kind of impossible for me to figure out what exactly I need. The 55 gallon is an Aqueon if that helps, and it has a crossbar in the middle. Measuring the inside, it's 47.5" x 11.5" (spanning the whole tank) and 23.75" x 11.5" (side to crossbar). So, this might be a stupid question, but this is the largest tank I've ever had, what size lid or lids should I be looking for? Everytime I search for those measurements, I find 75/90 lids (which are too big) or 2 too small lids... I'm lost. Is there a difference between having 2 lids or just 1 large lid?