The actual Karls candlelight (mine has no lineage but I think it looks very similar) is more brown in the center with contrasting bright green tips....kinda like candlelight on the tips. It became popular before these all bright green aculeus started coming in from Aussie. So it seems they are the same species just the one from indo is brown center, bright green polyps and tips and the aussie one is solid green. I see the aussie one being called the hulk acro.