Hard to say, it’s small for sure but they have a better chance there than where they are so go for it and monitor them. Throw some fake plants or something in there for them to hide out.So I have got copper now. I still would like to know if my fish would be ok in my 13.5 gallon evo for 6-8 weeks while they go through qt procedures and then stay in there a little while longer. All my fish are still juvenile. Its 2 chalk bass, a royal gramma, and 2 occelaris clowns. 5 fish now unfortunately the tang passed.