ʻO Copper sulfate pentahydrate kahi mea e hoʻoulu ai i ka ulu, ʻo Blue Copper Sulfate copper sulphate feed grade kiʻekiʻe o ke keleawe i loko o ka hānai hiki ke hoʻomālamalama i ka hulu holoholona a wikiwiki i ka ulu.ʻO kēia keleawe sulfate pentahydrate ka pauka keleawe i hoʻohana kūikawā ʻia no ka hānai ʻana, me ka maʻemaʻe ʻoi aku ma mua o 98.5%.