Numbers: <0.05ppm * Nirites: <0.01ppm * Nirates: ~2 pH: 7.5-8 Tempeture: 26C (None of my tests have a 0 reading, so the <0.0 numbers are basically the minimum reading my test will show*. Please don't tell me to get the test, I live in sweden and would have to get in imported in, which would cost more than getting a different european brand that does the exact same thing.) I've been having trouble with some of my other stock dying off since starting my tank (which I've resolved was likely because of too soft water for the moment, but I can't resolve the issue until next week), but my betta has been very happy and healthy the last few weeks, even after there was other deaths in the tank. The problems started over the weekend. There was a minor ammonia spike overnight when I didn't check the ammonia the previous afternoon, so the ammonia was elevated for about 24 hours. It wasn't anything totally life threatened but definitely enough to make him uncomfortable. I woke to my betta being a little more sluggish than usual but after a 60% water change he seemed to be doing better. Except, he never fully recovered to his full self because shortly after I noticed he had pooped funny. Normally my betta has tiny little pink balls of poop which are about the same color as the flakes I feed him. This time the poop was long a white and stringy. I figured out that this was a sign if either constipation of an internal parasite. I consider constipation to be the more likely scenario and the one that was treatable for now. I did notice that his bell was a little larger, and I will admit I was liberal with my feeding. I fasted him for one day as suggested and he seemed alright in general besides being a little more sluggish than usual. Still often came to the top of the water when I came around thinking I was going to feed him, very eager to eat as he's been since the day I got him. Stomach was still a little swollen so I did the pea method yesterday. He took to the pea ok at first but obviously once realizing it was not his normal food he was uninterested and stopped taking from me. He had eaten enough for it to be effective I think though so I let him be. He had another long stringy bowel movement and actually also sorta coughed up/threw up some of the pea about 40 mins later Today he is just... not looking great. His stomach hasn't seemed to gone down at all and he's just... not moving much. I checked on him in the morning and he was resting against the filter so I didn't want to bother him much, but I come home from work 8 hours later and he's in the exact same spot. His gills also weren't moving for a moment and I sorta panicked and disrupted the water a little to see if I could get him moving and he started breathing again, but immediately swam away and practically buried himself under the driftwood in my tank (he almost never goes down there and prefers to hide in the leaves of my plants or in the corner behind the filter where he builds his bubble nests) I also tried to give him a flake of food just to see if he would take it, and absolutely no interest at all anymore. I don't know what to do. Today really scared me and he's not looking good. At least before the pea he was acting more himself but it feels like after feeding him the pea everything has just gone down hill really fast.