Looking for Advice on Algae issues

Added two jebao rw-15's to the back wall of my tank tonight. They're pointed at the front of the tank. They move almost as much water as my Vortechs on the sides. I'm actually a little nervous pushing any kind of real flow through these things - I don't want them to blow the seals on the front of the tank. Can these stronger prop pumps do that?

I'm not normally a huge fan of the knock offs but I don't have the necessary clearence to put another Vortech on the back wall. Combine that with the price and I decided to give the Jebao's a try
They won't affect that tank at all, they do cause issues with rimless tanks as well as the vortechs. Jebao pumps will work just fine and will not cause issues and will last too.