Hi all. I've been dealing with sick fish for a few weeks and after starting out with 9 guppies im down to 3 with it looking like another is on his way out This all started a few weeks ago after getting 3 new guppies and they all died within the week with 2 of the 3 getting clear stringy poop. After posting on here it seemed I was dealing with parasites. I tried to treat with Imagitarium Parasite Remedy. I did a 3 day treatment but didn't realize I was supposed to take out the carbon filter so a few days later did another 3 day treatment with the carbon filter out. I lost more fish during this time before finally getting the API Master Test Kit and found out my Ammonia was .25ppm and Nitrites were between .5-1.0ppm with Nitrates at 5.0ppm. I started another treatment but after talking to the LFS the guy said he thought it was from the water quality so I stopped the parasite treatment and got a thing of Microbe-lift Special Blend Water Care and that had helped the water alot! My ammonia is now down close to 0ppm, nitrites are less than .25ppm, and nitrates are still 5.0ppm. I also tested my tap water and the ammonia was 1.0ppm so I figured I found the cause of my sick fish. Until today when 2 of my remaining 3 guppies started having clear stringy poop, they had also started swimming at the top of the tank in the last couple days as well. My endler guppy has been hiding majority of the day. When I saw him a few times his tail was down and his fins clamped. The other guppy with clear poop is sometimes at the top of the tank but is still sometimes swimming with my only guppy that has remained totally untouched in all of this. Basically at this point idk if I should be treating for parasites or assuming it was the chloramines in the tap water? I was going to get a bottle of Seachem Prime to use as a conditioner going forward and was considering buying API General Cure for the parasites. Its a 20 gallon tank that has been set up since Oct 31st and has 3 guppies and a bn pleco, if any of that is important as well!