After lots of researching I've kinda basically came up with ;
Tetraodon fluviatilis or green spotted puffer.
But like I said before, I am upgrading to a much larger tank in the near future. This guy is only about maybe half an inch long.
has about 10 maybe a bit less in what looks like a 15 gallon tank. When I watch them only one seems to pick on the others. (I've watched them for quite some time wanting to get the best for they are quite pricey.) Lady said they are brackish (duh) and they can be slightly aggressive toward one another. BUT my little fella just seems.... Depressed. My knight goby is doing fine . they both look healthy. Salinity is about 1.004 only because I'm trying to acclimate my plants to tolerate the salt. I plan on getting up to 1.010.