Black Aquarium Safe Silicone - The cheapest I found

Now as soon as I post this, there are probably going to be a lot of other people that will post cheaper prices, but I wanted to post what I had found because it saved me a few dollars. 
I've been looking for black silicone recently to use on my tank and I've found it very difficult to come by at a reasonable price.  I've read different things that say DAP or GE pure silicone is safe for an aquarium.  I even went so far as to call the manufacturers and they told me that they did not recommend using their products for that purpose.  And even that it was OK, finding it locally in black was not going well.  Just to be safe, I was looking exclusively for All-Glass or Perfecto brands. 
www.herpsupplies.com had the best price at $6.50 a tube and shipping of about $5.    The next cheapest place was Big Als Online, which was over $17 with shipping, but sold out.  Many places where closer to $9-$11 per tube and around $10 to ship...so if you don't shop around, you can end up spending a lot more than you need to.  Also, with shipping as expensive as it is, it's probably best to buy more than you think you will need so you don't have to place a second order.
Anyway, I hope this is helpful for someone and that someone else can save some $$ from my search.
--AJ

 

The reason they gave me was that it was not rated to be submerged for long periods of time and would discolor and break down.

--AJ

 

Thanks Eric!