Kuhli loaches love hiding under rocks, logs and burrowing into substrate the more hiding spots and the larger the group the more they're active. They have a small bio load so stocking wise you should be good as long as theirs room for them among the Corys. Kuhlis are bottom feeders so you won't see them eat very much. They are nocturnal but will come out during the day with time and patients. I have 5 black Kuhlis and a striped one and they're just now starting to come out after almost 6 months of having them
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