the taller viewing window is always nice, personally i dont like the look of black silicon, but a bigger tank for less money is a no brainer IMO, but your the one who needs to live with the choice
the black silicone tank only has a 90 day warranty.
the clear one (All-glass/Aqueon) has a lifetime warranty..
the people at the LFS are suggesting that they feel that the All-glass tank is the better constructed of the two..even though I have had tanks from the other manufacturer running straight for 16 years..although its true they have never been moved or even emptied...
hopefully, warranty is something we hope to never use.. but its there if you need it.
lifetime is better than a mere 90 days no?
I am sort of leaning more towards the clear one now...
My LFS contacted Aqueon directly and you CAN get them to make standard tanks with black silicone (normally, only their bowfronts have black silicone), for $40 more.
so, I just ordered an Aqueon 150 gallon 72x18x29 with black silicone..
its special order and takes 4-6 weeks to come in, but its ordered..