I have a 60 gallon salt water set up. It has been up and running for about 3 months now. I have a lion fish a saddle wrasse a very small panther grouper and a couple damsel dominos that were my starter fish. I had a porcupine puffer that died this morning wrasse is not looking hot either. I did a water change on the tank yesterday. I took out 7 gallons and replaced it with water from my local fish store. I had my water tested yesterday and everything except my ph looked good it was low but was told the water change should fix that. I added the correct amount of bacteria with my water change and added some buffer today just in case the ph was not raised. I don't know what else to do any advice would be a blessing!