I have been testing with an API Freshwater master test kit and my LFS uses quick dip paper strip indicators. Just tested my water and parameters are:
Ammonia-0ppm
Nitrites-0ppm
Nitrates-in between 0 and 5ppm
pH-7.0
I was also wondering If I should be adding salt when I make water changes? My LFS told me that I should be but I also read on here that certain catfish are extremely sensitive to salt and I didnt know if corys fit into this category or not? I really need to do something fast because he is developing a small red dot on his body right at the base of the tail fin. I dont know if I should add some chemicals or not, I'm sure thats what the LFS will sell me but I trust you all way more than them. I dont have a quarantine tank and I dont know if chemicals will affect my other fish or not. i have in my tank as of now: The sick cory, 1 small spotted cory, 1 dwarf flame gourami, 2 yellow platies, 2 sunburst glofish. Also I was wondering if the cory could be stressed from not eating enough? I feed the others wardleys total tropical flakes and dried baby shrimp sometimes. Do you think that he gets plenty of food from that or is he maybe undereating because I have never had any of the pellets? Thanks so much for your help