Hoping to get some advice on this - I recently purchased a fluval spec V and noticed after a couple months that it was having water appear around the base. Despite never seeing a crack I thought there was a leak and ended up purchasing a second fluval spec V. A month later and now I'm noticing water around the base of the new tank as well. It seems unlikely that both of these brand new tanks would have leaks without noticeable cracks. Also when filling the old tank with water and leaving it in another room - no water is forming/leaking. Any thoughts??