It was dry pukani. Tons of dead organic hitchhikers. Even today, looking in the tank I still will spot a small clam, or some fleshy looking thing. Just picked a meaty something out of a crevice last week. Which I'm sure was absolutely decaying and giving off ammonia or phosphates. Muriatic acid bath, took care of a lot of organisms on the rock though.I guess we need to define what "dry rock" is then because what you're describing isn't dry rock, IMO.


