MBU puffer help

[Reefkeeper]

Hey guys new here, I got a MBU puffer and he’s in quarantine right now. He pooped but they looked like beads. The person I bought him from said this is not an internal parasite but from what I was reading it seems it is.
temp 78
Ph 7.4
Nitrate 0
Ammonia 0
Nitrite 0

he eats pre cooked shrimp at the moment, I do water changes after feeding him to keep the nutrients in check
Just need a little insight here

 

[Colin_T]

What to do if your fish has Stringy White Poop.

Fish do a stringy white poop for several reasons. 1) Internal Bacterial Infections causes the fish to stop eating, swell up like a balloon, breath heavily at the surface or near a filter outlet, do stringy white poop, and die within 24-48 hours of showing these symptoms. This cannot normally be...

www.fishforums.net

 

[Reefkeeper]

What to do if your fish has Stringy White Poop.

Fish do a stringy white poop for several reasons. 1) Internal Bacterial Infections causes the fish to stop eating, swell up like a balloon, breath heavily at the surface or near a filter outlet, do stringy white poop, and die within 24-48 hours of showing these symptoms. This cannot normally be...

www.fishforums.net

Thank you!
So should I just go through each treatment until I get the results I’m looking for?