I recently read an old book that says it is possible to keep store bought fish along with wild caught fish if the wild caught fish are quarantined properly. It also says that mixing of CERTAIN colder water fish is possible with warmer water fish if the temperature is kept at 22°c. I have kept wild caught fish and i have kept store bought fish but in separate tanks. So i was wondering if this book's information might be outdated considering all the new advancements in technology and how knowledgeable we have become regarding the sea. So if this information is wrong please correct this info in any way possible? Im kinda interested in doing this if it is possible.