any advice is greatly wanted!

Good Morning Everyone!! I am new here, I’m hoping someone will be able to help me figure out what is going on with my Glofish Tetra. Having trouble swimming, staying near the surface swimming vertically or with nose pointing up. Overall just swimming strange. Only fish with these symptoms. About...

I have a ten gallon tank the ph is 7.5 I have driftwood and a pile of rocks I have a airstone, but no co2 my lighting is 15 watts and 8,000k I plan to put guppies in after it cycles ( plants after cycling too) I don't have any special substrate or dirt I would like to get java moss java fern...