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Is there really so little known about these? Not even an indication of age? Even the dutch pages lack basically any info. I've had a few for a couple of years now and I'm wondering what ages these have been observed to reach, they seem to be able to learn things over time and grow more comfortable with an environment, recognizing new objects as food rather than panicking/fleeing for example, which they seem prone to do (fleeing). Are there any good references regarding the intelligence and longevity of these creatures? The only ones i could find were quotes from owners on aquahobby (easy to google, dont think i can post links here) that said 3-5 years 'when properly cared for'. Does anyone have a better reference on their age? - alex — Preceding unsigned comment added by 83.81.174.245 (talk) 22:11, 26 July 2018 (UTC)