Hi! I'm hoping someone can offer some advice. I came home from work today to find my large black veil angelfish gasping, ignoring food and not swimming around. She has wedged herself in some plants. I also have some zebra danios that I thought were pregnant, but now I'm thinking it's been a long time... I had a friend come over and dose the tank (72 gallon, no nitrates, no ammonia, ph 6.8 - those are the only tests I have) with 48 drops of Cupramine. I am supposed to dose again tomorrow with another 48 drops. Am I on the right track? Thanks for your help!