I have been out of the hobby for a few years now and looking to start back up now that life has settled down a bit. I had a successful 75 gallon reef tank for years until my sump tank developed a leak and there was no way to fix it in a hurry. With that being said I bought a nano-cube 28g about 4 years ago and never set it up. Has anyone had any problems with these tanks? I have read that the bio-cube tanks crack. Or should I bag it and get something else? Thank you for any advise