I curiously lost my Zebra Oto's lately both died the same week... they were thriving, and even seemed like they might be spawning... the only thing that changed, is my increased water change routine... all the other fish seem to be liking the increased water changes... this is reducing some of the tannins from the tank the water is starting to clear... I don't think the zebras require "black water" to survive, and the water change water is RO... I'm wonder if the King Tiger Plecos, that also seem like they may want to spawn, maybe battled over one of the caves ( I found the body of a zebra at the mouth of a cave ) with the tiger eating it... I know plecos can, and will eat on dead fish, but I'm not sure it killed it??? some of the other African Tetras are hard to keep, and all are still thriving, so it seems unusual to lose both zebras the same week... I've not lost any other fish, since increasing the water changes... I've heard increasing water changes can induce spawning, on some fish that spawn in the rainy season... I'm not particularly trying to get any fish in my community tanks spawning, just trying the make the water quality better... thoughts???
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