Apulo Posted March 10, 2022 Share Posted March 10, 2022 Last week I was at my LFS looking for neon or cardinal tetras and they let me know they had just gotten a delivery of cardinals. I picked up eight and headed home to get them acclimated and in my tank (14 gallon cube) to join the three otos and two panda cories that had been happily living in there for over a week. The tank was fully cycled with 0 ammonia, 0 nitrite, and 20ppm nitrate for the plants. After adding in the cardinals, two were dead within hours, two more were dead by morning, and the other four were dead within the next few days. I tested the water immediately and still, 0 ammonia, 0 nitrite, 20ppm nitrate. The cories and otos were still just fine and doing their usual thing. I of course did a 30% water change to be sure and everything seems to be happy still. I'm just afraid now to get any more neons or cardinals. Does anyone have any advice? Should I try to get some neons again? Link to comment Share on other sites More sharing options...
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