[philfer]

One of my snail was so slow that end up dying the other day, then I added a peppermint shrimp which last 4 days could not even find it, I though could be the bad acclimation who knows. Last week I added a cleaner shrimp and a white crab, they were fine for 4 days the shrimp died in the 4th day and the crab was dead 7 days from bought it.
I changed some of my water and tested everything looks good. My mushrooms are shrinking, that I thing is my lighting, but what about the shrimps and crab and snail? My other snail is fine and my scarlet and blue leg crabs are fine too.
I need help I am afraid to loose more.