So I noticed a teeny tiny grey fry at the bottom of my 55gal community tank just now. I've only seen two at the same time so far, but there is two 3-3.5" three spot gourami in there so I wouldn't be surprised if they're the only two left. I noticed that one of the fry I was able to keep any eye on for awhile kept jamming itself down in the crevices of the gravel, it looks like it gets stuck and then after I minute or so it wiggles its way back out. It repeated this behavior a few times while I watched. Is this something fry usually do? Their either mollies or platies, I can't tell because all the fish I thought looked pregnant still look pregnant.