- Joined
- Jan 21, 2020
- Messages
- 2
- Reaction score
- 14
Hi, bought a used 30 gallon tank a few weeks ago. It was already up and running when we got it. At the time we had to do a top up of water. A couple of days ago, we did our first water change. We changed almost 1/4 of the water. We tested the water. PH is 7.5, NO2 is 0.3, NO3 is 5 NH3 is 0.3, PPT is 30. All our fish have died. Now I'm worried about the live rock. What should I do now?