Thanks so much for the advice. Yesterday, they seemed hungry so I dropped some Reptomin baby in their tank and they ate some, which made me very happy and I am going to buy them some guppies today and see how they respond to that. I have another question: Today the water in my softshell's tank is very bubbly (like tiny white bubbles everywhere) at the top and I am not sure what it is or why. Would you know anything about this?

Thank you.