if its under leds and just changed systems it can get some green when coloring up, lots of acros will go green before getting their mature colors. One thing I've noticed between the cali and oregon is the cali will get green polyps and the oregon doesnt, I've had the oregon get some green in the base before going all blue under leds. The cali and ice tort usually keep some green in the base as when my oregon is fully colored up its a bright all blue. Yours still has a lot of growing to do before you can tell for sure but the structure looks good