Glofish Not Eating And Staying In Corners

HI I have a 10 gallon tank with 4 Glofish, 1 bristlenose pleco, 1 african dwarf frog, and 1 apple snail (yes, I know its overstocked and the pleco will get huge and I'm trying to rectify that (anyone in New England want a bristlenose pleco lol)) but recently (like a week ago) my purple Glofish stopped eating as much and now she doesn't eat at all and she looks really skinny which for a fish is saying something cuz fish are always skinny and her fins look okay (except for the bottom one has a little bit for fraying but that might be from the bout of fin rot my tank had like a month ago) the params are totally normal (ph=8, ammonia=0, nitrites=0, nitrates=5ppm) the rest of my Glofish seem fine they swim around and play tag and stuff but the purple one just wants to stay in her little corner for all of eternity how can I get her to eat???

 

Bristlenose don’t get huge, they’re maxing out at 6 inches, and average is less than that. They only require a 20 gallon long. Petcos having their dollar per gallon sale btw.

Whats the temperature and what do you feed?

 

Bristlenose don’t get huge, they’re maxing out at 6 inches, and average is less than that. They only require a 20 gallon long. Petcos having their dollar per gallon sale btw.

Whats the temperature and what do you feed?

Yeah I just don’t have room for a 20g, plus I got the 10 gallon and every fish in it without asking my parents and I doubt they’d let anything more slide
The temp is 74 and I give flakes to the glofish, but I don’t know what brand because I lost the label. The other three glofish are fine and eating well though

 

UPDATE: ok so after talking to a guy at a local fish store I got another glofish tetra, I know the tank is overstocked, I’m gonna get rid of the pleco, the guy at the store said he’d take him. Now the purple tetra who was hiding is actually swimming around a bit but still not eating and the new tetra I got is wreaking havoc on the social order. The green one (who I consider the alpha cuz he bullied everyone else) is now chasing the new yellow one continuously, and the yellow one has clearly lost scales. To try and stop it I put a clear container with some water in it into the tank so it floats at the top and then put the bully in that. Will that help? Should I worry or is this just how they establish a hierarchy?

 

You could try removing the bully, rearranging the deco and then putting him back in. Hopefully he will think he is in a new place and he will then be the new kid on the block and if you are lucky the bullying will stop.