In one of my tanks, the ground has about an inch of gravel, and then on top I put small black stones. It looks sooo cute, and my fishy is always curiously sniffing through the stones. HOWEVER, this morning, just like every morning, I calmly woke up and went to get a look at my fishies to make sure they were okay. As I look into his tank, I don't see him. I go into panic mode thinking he had somehow jumped out. Then, on the corner of his tank, I see his little head sticking out from under a stone..HE HAD GOTTEN STUCK. apparently he was sniffing through them and knocked one on top of himself...I FREAKED OUT and quickly pulled the stone off, he swam up and got air..omg. What should I do? Should I take out the stones? ALL of my tanks have stones in them...some have NO gravel and ONLY stones..is this a problem?