Estes Special Spectra v. Special Ultra

[ecal468]

Does anyone know the difference?

Special Spectra: http://www.amazon.com/SS-SPECIAL-BL...1?ie=UTF8&s=home-garden&qid=1181779987&sr=1-4

Special Ultra:
http://www.amazon.com/Estes-Black-S...?ie=UTF8&s=home-garden&qid=1181780094&sr=1-15

Estes Gravel:
http://www.bigalsonline.com/BigAlsUS/ctl3684/cp18302/si1381377/cl0/estesblackgravel5lbs

I would think the larger stones would be better, but Petsmart is having free shipping on the Special Spectra, which saves me a lot because of the 125 lb.s I am ordering. Any help?

 

[ecal468]

Ended up going with the Special Spectra. Free Shipping with 125 lb.s came out to 60 USD.

 

[bigcichntwisted]

Thanks ecal468 for the $$$ saving info, was just considering these substrates myself, info really helps

 

[ecal468]

No problem, the free shipping is on any order over 50 dollars I think! Luckily I slid by with the 125 pounds of it.