How to make my fishtank saltwater?</br>I have a ten gallon fish tank, and want to put these really cute salt water puffer fish in there. I have a heater, lights, and a filter. How do I add the salt or salt mixture into my tank? And what temperature should I keep it at? Do you know where I could get the salt for my tank? Thanks!</br> What's a good non-fish pet for a 1 1/2 gallon tank?</br>I have a 1 1/2 half gallon, non-heated, tank with a Small Whisper filter and light. What would be a good non-fish pet to have in it? I was looking into Crayfish but do any max out at 2 inches? I think Pipe-fish are too hard to care for. Fancy shrimp? Very small, 100% water frogs? Any links to pics would be appreciated. Thanks!TheFiredrake</br>