I’ve been running my new tank for 3 weeks now. At first, I was a TOTAL idiot...I put a few fish in tap water with a filter and they were dead within 48 hours. So I did my research...I’ve added chemicals to combat “new tank syndrome”, to maintain good water conditions, and even something to cure Ick because I was seeing some fish get a white film. But now I’m totally out of answers. I took my water to get tested (at PetsMart, mind you, where some teenager who didn’t want to be there did the testing) and they told me my water was fine... Ammonia-0 Nitrate-10 Nitrite-0 Hardness-75 Chlorine-0 Alkalinity-10 pH-6.2 *We also added a moss ball Any ideas?? Some fish are surviving (Platys, which I read are the most durable and easiest to care for) but I’ve lost almost a dozen fish of other types. Now I looked this morning and my Bala Shark doesn’t look too good...and he’s my favorite. Any help would be greatly, greatly appreciated.