Fungus
Aquarium Advice Regular
I introduced a derasa clam and a cleaner shrimp at the same time about 2 months ago. All my research led me to believe they're compatible. They had been doing fine since. But yesterday I saw the shrimp pulling at the clam's mantle. He tore the edge of one of the clam's openings. I placed a protective cage around the clam, but today the clam looks bad: retracted mantle and open shell. Any advice?