Hello everyone. New to aquarium advice and to the hobby.
I have been doing my fishless cycle for like 5 weeks. I had my ammonia spike and nitrite spike just like it said. I used live rock and pure ammonia from Ace hardware to seed it. So after the the 5 week everything look good ammonia 0, nitrite 0, nitrate 5-10ppm, that day i did a 50% pwc
so i would be ready to add my new fish the next day.
I went to petco and i got my first fish, I got a pair of Ocellaris clowfish they look healthy got home did drip acclimation for like an hour. when i put them in my tank they swim to the bottom everything looked ok.(one thing i did notice was they were opening and closing their mouth alot)next day one had died
(within like 12hour)the other clownfish was still doing the same thing with its mouth.my other clownfish also died that same day. so i tested my water everything is still the same. so i went to another LFS
got my water tested their he said every thing was okay. i told him about the my 2 loss fish i had he said to be careful when buying from petco so i bought a cleaner shrimp from him. did the same thing drip acclimate for like 1 hour again as soon as i put him in the tank the shrimp started acting weird he stayed in the same spot and died with in a hour.
Can anyone help me why is this happening? I will not add any more fish now cuz i have something wrong, i dont want to lose more fish.