Hello hobbyist! My 2 year old jaguars "Mickey & Mallory " have breed many times when they we're in my 90 gallon. I always get 700 to 1000 fry every time, but after two weeksa majority of them always die! My Ph is basic 7.5, I do 20 to 30% water changes every other day. I recently upgraded to a 180 gallon tank/ fresh filter media, and the jaguars love it! They laid more eggs than ever, all of them hatched n two days, 1500! I feed them frozen baby brine shrimp, and crushed hikari gold pellets. Everything goes well as usual for two weeks, very strong, then the dying started again! Some do survive, but majority always start wiggling till death, what am I doing wrong!