Milky white/cloudy white is seem like a bacterial infection. I used maracyn-2 on my tank with bacterial infection few weeks ago.
Maracyn-Two Powder Freshwater Active Ingredient Each powder packet contains 10 mg Minocycline activity. NOTE: Be sure to treat for the full duration recommended, even if symptoms disappear after a few days. DO NOT overdose. Follow dosage directions as detailed on the product packaging.how do you use this?