prolapse

So I've been having some issues with my flowerhorn, he hasn't been eating for about 4 weeks so I've been tube feeding small amounts once a day of hikari pellet mush. He is/was doing white and clear poop so i treated him with fumpid and he's a lot more active and some colour has come back. 2 days...

Help

Does this look like a prolapse? I believe the fish has hexamita since he's had white string poo recently. He's stopped eating and has been lethargic recently, the last time he ate on his own was about 2 weeks ago. After a couple of days of him not eating I started feeding him through a tube...