Eric R Posted May 8, 2021 Share Posted May 8, 2021 (edited) So I have had 7 Paracyprichromis nigripinnis (Blue neon herring cichlid) in a tank by themselves for about 6 weeks. I had no deaths for the first 4 weeks (except one a few days after they arrived, I don't think it handled the overnight shipping well - I ordered 8 and it was pale and lethargic compared to the others). Then I had one die with no symptoms, parameters were all perfect (0 amm. 0 nitr. 5-10 nitr. dkh 14 dgh 18 ph 8.0 temp 77), then another several days later, still no symptoms. So I decided to treat with Maracyn and ParaCleanse, per Aquarium Coop treatment suggestions on Wednesday, after vacuuming the tank and doing a water change. I haven't fed since then, and I noticed a bacterial bloom this evening. Tested parameters, sure enough I had detectable nitrite (0 amm. 0.25 nitr. 10 nitr. dkh 14 dgh 18 ph 8.0 temp 77). So I did a 70% water change, being sure to match the parameters before changing. I find this interesting, as @Bill Smith mentioned in a post that he always has bacterial blooms after a Maracyn treatment. I add baking soda and epsom salt to my tap for this tank, since its a Tanganyikan tank. Bill's thought that he gets bacteria blooms while Aquarium Coop didn't in their testing was due to his water hardness. Curious if that could be the case here, since I have such hard water in this tank? I'm also currently treating a 5.5 gallon tank with a group of 9 juvenile white clouds that I just purchased, I haven't yet had a bloom in that tank, but it just has water from my tap, which is sourced from our well (7.4 ph, 4 dkh, 7 dgh). I also am treating that one prophylactically with Ich-X, which I'm not doing is this tank, since none of the fish have shown signs of Ich. I am planning to follow the current treatment with a course of Ich-X for this tank, I was just spacing them out since the Paracyps seem to be more sensitive. Edited May 8, 2021 by ererer 1 Link to comment Share on other sites More sharing options...
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