They all get so excited when you go near the tank. The signal for food with mine is when I open the little top on the mini bow. They all go bonkers then. I have two that actually jump out of the water at that point. The most active is the small marble plakat.
I have four tanks around the area where my computer is. The cute part is sometimes when I turn to look at them I noitce them at the edges of their tanks staring at me. They don't seem to find the computer screen all the interesting, but two of them stare at it when I play a DVD or something
That is so cute. It so funny when i walk by the kitchen (where all my bettas located) all the bettas will follow me left to right or right to left in their 1 gallon tank. LOL Basically FOOD FOOD!! LOL