For urine sampling and estimation of urine storage in a cichlid from the lake Malawi, maylandia zebra, I want to prevent urination for a certain laps of time (1 or 2 hours). In Tilapia, species with a micro-penis, the author tie the uro-genital papilla. But Maylandi don't have the same thing. Do you think that a biological surgical glue would work ? And do someone use them on fish even for surgical applications ?

Thank you very much