So, i have a situation. Not a problem because problems can't be fixed, or so i am told. Looking to see if anyone can come up with some creative ideas that i haven't thought about yet. I have a 300 gallon aquarium that i finally got running last night. i had a few slight miscalculations though. the biggest one being how much water i would need to run the system and how much water is going to back-flow if/when i lose power. the tank itself is 8'x2'x31" tall. i currently have half of a durso pipe set up for the over-flow(the 'T' without the elbow on it). the problem is i only have about a 40gallon sump, give or take and it is going to drain roughly 20-30 gallons if/when power goes out. just a couple other things i have had. i can't slide the current sump out. the doors on the tank aren't wide enough. to get it in i cut a door on the side that faces the wall. at the time i didn't want to actually build a cabinet door so i just spun the tank back so i wouldn't have to look at the hole.(i know, shame on me, but it was the easiest/best solution at the time for a sump). the sump is currently a 30 gallon that is drilled and connected to a 10ish gallon acrilic tank. other things about the tank. the drains and returns are 2" ID PVC pipes. drilled into the middle of the tank so i don't have an over-flow box. anyone have any ideas?