I tried every day when I saw him near the open part of the tank, and he'd run away. At one point I saw him kinda nibble at one, but he ran away right after and didn't come out. Unfortunately, the day after that happened I noticed that the live plants I got from Petco were dying, and adding a lot of unwanted debris to the tank - so I had to remove them all and add a few leftover plastic plants I had. The only plant that seemed to survive is the Java moss
It's been a week since I got him, and I might just be overreacting, but I can't tell if he's eating or not, and I want to know what I can do to help. I have frozen bloodworms that I thaw out to feed him. I've tried a turkey baster, an eye dropper, feeding tongs, and today I even dropped a whole frozen cube into the cone feeder I bought, but he doesn't even seem interested in them.
He's been spending a lot of time near the top of the water near the top of my filter, (The tube stretches down into the tank, so it's not near a suck zone) and off to the side of my heater. He's also glass skating every now and then.
I tested my water today, so here are the parameters:
temp: 78 F (I've had issues with temp rises and drops as well, tank will go up from 70-72 to 80, I'll turn the heater down and leave the hood open, and it'll drop down to normal, any tips on keeping this more constant?)
Ammonia: .25 ppm (maybe a bit lower?)
Nitrite: 0 ppm
Nitrate: 0 ppm
pH: 7.5 - 7.6
Picture of the tests tubes:

Here's a picture of my set-up as well as a picture of Posey (first is most recent, it's blurry sorry, and second is the day I got him):




Thanks for any help in advance! I want Posey to stay healthy, and I'm just really worried. He also shares the tank with two Golden Rabbit Snails, but they don't seem to notice each other.