Two Spotted Goby

[Darist]

Hi, I was wondering who out there has or has had spotted gobies, I have a pair right now that I have had for about 3 months. I am curious to the longevity of these fish, I have only a 20Gal so I have started enriching the sand bed with a syringe and home made fish food. They seem to take to it very well, I have noticed that they won't eat any larger pieces of fish or algae. They seem to eat it as long as it is very finely minced. Has anyone tried anything like this for other sand sifters?

I would appreciate comments that anyone is willing to offer, I have only been in this hobby for about 8 months.