Hi so I've been trying to get my clam to attach to a rock towards the upper third of my tank. That's where the old one was and it seems to have good lighting and good flow there. This new one keeps jumping off and landing in the sand. I have no problem keeping it in the sand.... the teal color that I mentioned before actually comes out a little more when it's further away from the light.... the question is whether my pistol shrimp will decide to eat it. The pistol is definitely the serial murderer of my cleaning crew....