So I bought 6 damsels and put them in my QT. 3 have perished. I am honestly at a loss. I seem to be having a streak of bad luck with my new 75 gal and ANY fish I buy as of late but thats another rant (i bought damsels bc i thought to myself SURELY, of ALL the fish I have EVER owned, these are the hardiest). I'm just looking for answers as to what might have killed the damsels. And possibly some insight into why I'm having such a hard time keeping anything alive. I'm embarrassed and very discouraged at this point (there's been a few casualties). The QT is cycled, its actually a second one i bought bc i thought the first 10 gal was cursed, 0 ammonia, 0 nitrite, like less than 5 ppm nitrate, checked daily and has been running for like 2 months. Its honestly more of an observation/ hospital tank and its a 20 gal long. I did a 7 day Prazipro tx. I thought maybe it was a bacterial infection secondary from that. Maybe uronema? Maybe some outside factor im overlooking?
Tia
