Well, I did a water change on the 10g, and made the switch. I'm beginning treatment on Ice's fins and 10g give me more of a dilute area. Flare is easy going and took to the 3g tank right away, made some faces at me, danced, and is already blowing bubbles. Ice is exploring the 10g wondering what he is going to do with all that space. I put a sponge over the filter output as Ice is not used to a filtered tank. Hopefully i will see improvement in his fins within the next few days.