StephenP2003 Posted December 29, 2020 Share Posted December 29, 2020 (edited) I'd never used any Sera O-nip tab before the formula change, so I didn't have a baseline for what to expect in either of them. When I ordered them on Amazon, I got the new nature kind (in the smaller quantity box). My fish actually liked them, so I made an order for a larger jar, but this time I got the classic "old" version. I was happy because I figured they had to be even better, longer lasting than the new formula. Since I had both on hand, I decided to film my guppies and platys attacking both side by side and see the difference. Short video below, but I'll just spoil it by saying that while I observed the fish swarming both of them at the same time, the new "nature" formula lasted the longest. Has Sera fixed the new formula, or is there some other explanation here? I still have both old and new formulas tabs, and other fish tanks, if anyone has a suggestion for another experiment. Edited December 31, 2020 by StephenP2003 8 Link to comment Share on other sites More sharing options...
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