Both sharks. One is a brownbanded and the other is a whitespotted.

The brown sac on the sand in one of the tank pics is the egg sac from that brownbanded shark. Hatched both of them.

Those frogs are PIGS. That one is a little over 3 years old and it has grown huge in that time. My hand is next to the tank to give a size reference of it. Hard to believe those tiny little things you buy out of a ten gallon tank at the petstore can get that big.