I've seen many posts here that suggest using Apple Cider Vinegar in the water for overall better health for the birds. But I haven't seen an amount to use or how often.?? Quaillady, I think I saw somewhere that you use it. If so, could you share some ideas here. I would like to use it for all my birds, parakeets, and such, along with the quail. I haven't had a chance to get to a organic store, will Heinz work O.K.? It says "The all Natural Choice for Food" and 5 % Acidity.