Gainesjs,
Tell them the algae hurts us humans to look at and fish in....but the cows could care less. No problem for them at all.
As far as removing from the water tanks, I wouldn't worry about it, unless it was somehow blocking the flow of water into the tank. If that happens, just remove it by hand. I wouldn't use chemicals to treat...personally, I feel that too much chemicals are already used in our food supply.
