So the other day I lost my blue hippo tang and then I did a 30% water change and today I found 3 more fish dead so I tested my water again and my levels are Ph 8.2 ammonia 0.25 nitrite 0 nitrate 10 phosphate 0.25. Wanted to see what I should do to get these levels down and what I should be doing before I start to add fish again. Any info or suggestions are appreciated. Thanks