Fairly new 29g tank. Heavily planted, properly cycled. pH 7, KH 80, CH <30, temp 77, NH3 0, NO3 0, NO2 0.5, Twice week small water changes. Slowly stocked with 5 danios, then corys, then 3 German rams, 1 female Krib. Recently replaced danios with neons and added 3 more golden rams. Lost a couple of neons, understandably. But then one blue ram began to slowly sicken and die. Zero visible problems other than color loss, rapid breathing and no eating, turning into swim issues, then death, all within a couple day or so. Then, one at a time, the other 2 blues experienced same issues and died. No two ever sick at once. Lost all three within a week. No obvious bullying, Now one golden ram found apart from others and rapid breathing. WTH is happening???
update- now 2 goldens presenting same. Cannot find any exterior symptoms
update- now 2 goldens presenting same. Cannot find any exterior symptoms
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