Correct Gounding For Engine w/Alum. Heads

I am worried about electrolosis wrecking my new aluminum heads. I saw a post awhile back that had pics of some pretty bad pitting on head faces. I don't want this to happen to me. Been told to change coolant regularly and have good grounds. I have a ground from battery to block and from one head to firewall.
Problems? Suggestions?
I already added an anode into an unused waterpump port for insurance.
Is this enough?
Thanks!!!

Ground to block is fine.
Coolant ("antifreeze") and/or Water Wetter will handle the aluminum, especially since you're using an anode. The anode will need to be replaced from time to time.
Sounds to me like you're on top of it.

So by the lack of replies, I am guessing I am worrying about this for nothing.....................?