Coral temp acclimatization

[Holy handgrenade]

I just received an order of corals i placed online but the temperature is 10°F colder then what my tank is (i keep it at 78 but they came in at 68). How fast, or slow, should i raise the temp without shocking the corals?

 

[nuxx]

Not nearly as delicate as fish.

I'd bring them up by floating in your tank with the lights off for a bit.

 

[Floyd-]

I float for 15 minutes then in they go.

 

[Duffer]

As above float them in the tank