I am currently dosing my system with a product, that I am certain is vodka... but packaged as a marine nitrate destoyer...

Now that you mention it, my sponges are exploding in growth... too bad noboyd in my tank eats it. I have pink, white, yellow, blue and purple... I thought my regal angel would love it but he prefers the stuff I really wish he would not touch. I just try to turn the other way:wink:

I don't know if there is a corralation between vokda dosing and sponge growth for sure. I do however notice mine had exploded in growth.

I ran VSV for a bit and did have a fair bit of sponge growth, but also feeding products like immuvit and coral frenzy can help sponge growth.
KZ sponge power is one of the better products for sponge growth.