Hi, T5 lights are sufficent for the cynarinas.
Cynarinas are in a way. . very " docile" corals. They don't sting. However, please take note that corals such as acan, bubble, frogspawn, hammer will sting cynarinas/pratas etc. The most deadly coral is echinata (is it correct spelling), less than half hour in contact with ur cynarina and it will be burnt to skeleton. (from personal experience)