Two of my favorite corals are acans and blastos. I really enjoy all of the different color patterns you can get with these corals. My question is about placement. I realize tha these corals are semi aggressive and send out sweepers. My questions is can different color acans be placed together without them harming each other? The same way you can group hammers or frogspawn together without them fighting. The same question would apply to blastos. If I purchased three different colors of blastos would I need to be worried about them fighting if they are grouped together?



