I got the hero 5 around 2 months ago. The tank started leaking around the seam. I didn't like the dark color of the tank anyway, hard to see the liquid. So I bought 2 of the clear tanks for it. Surprise, they both leaked also. All developed leaks in the bottom seam area. I was able to super glue it to stop the leaking. Just thought I'd give everyone a heads up. A little hard to see but it's the bottom seam