I have three Golden Dojo loaches and I simply love to watch them frolicking. I noticed that when my hand is in the water, one or more will come up and nibble. How cute, but then I wondered if they're hungry? Sometimes though, I carefully, slowly, move my fingers and they kind of swim in and out and around them. However, they still nibble. So, I'm worried that I'm starving them. I've only had them for about 2 weeks.