I have a 60 gallon tank, I use the liquid api tests My stock is an angel (baby new),6 rummy nose tetra, 3 golden wonder killies, 3 black skirt tetra, a balloon pearl gourami, honey sunset gourami, powder blue gourami, a bamboo shrimp.
the recent fish that have died was a german blue ram so I bought a couple rumy nose but a couple of those died so I got a couple balloon rams and one of those died. I havent seen the other one in a couple days tomorrow I will go on a fish hunt for her, so i got 2 angels neither made it but the gu i bought them from told me hed give me another since it died 3 days after i brought it home. and that one is still alive but idk i feel like im having WAY too many fish dying off. my readings were all 0 except for the ph. I do 15% water changes every week and feed them once a day.