Hey guys. A few months ago I built a 42 gallon paludarium. I finally got it up and running but I am having filtering problems. Let me explain my setup exactly and hopefully someone on here can help me out, cause the water has been stagnent for a few weeks now and I just want to get it back up and running properly! So the tank is 25L by 18W by 24H. The bottom 5 inches or so is the water section. So ther is roughly 10 gallons of water give or take... I ran 2 1/2 inch pipes over the back of the tank in hopes to siphon the water out via canister filter. I was running a cascade 1000 to siphon the water up the back of the tank down abot 3.5-4ft then back up 3.5-4ft back into the tank. The first week it was set up it ran like a champ, then one day I came home from work and it was gurgling, so i re-primed the pump intake, ran great for another 4-5 days, repeated this process about 5 times until the pump finally shit the bed. So my plan now is to try and create this same suction using a more powerful water pump instead of a canister filter. I have a blueline velocity t1 pump I am planning on using. So I guess the real question is will this pump be powerful enough to suck the water up the back of the tank and then pump it back in on the other side??? Is ther any specific pipe configuration that helps wen trying to create a siphon or maybe using an aquarium air pump to try and help create suction??? Any info will be greatly appreciated! Im just sick of having stagnent water in my brand new palu! My goal is to create a sump type filter from scratch using the velocity t1 as the power plant to siphon and return pump without burning out my new $200.00 pump. Can it be done? If not what other options do I have to try and siphon the water out, btw drilling for a bulkhead is out of the question as Im 99.9% sure the glass is tempered... Thanks in advance for any help!!!!