Sadly the del is already presumed dead...
the 2.5" JD is prime suspect for suspicion of murder and a RES turtle as accomplice to murder. No signs of escape only thing not covered was a little space for fluval tubes and the water is about 4" from the top of tank. The bichir was 4" and was a days away from being moved to safety but he has disappeared in a 50g res and 2.5" jd only habitants