I just recently got a few bolivians, and from what Ive researched: the water hardness is a major factor. They like soft water. I used to lose german blue rams all the time. Now Ive had them for almost 2 weeks and their color gets better almost every day. I use mostly RO water though. My ph-6.5, kh-4, temp 84-85. Theyre also supposed to like warmer water, more towards 85.
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