I just recently bought two more nano Koralias. I was wondering if there is a process in adding the new powerheads? I am afraid that just throwing them in might shock the corals. Please Advise.
IF anything, you have shocked them by not having enough current, you can NEVER have "too much current" in a reef tank, the real ocean is a rough and tumble place......
I agree. The only thing to be careful about is how you aim them. Don't want them blowing sand around. New currents have a tendency to mix up the sand a bit. Also be aware of any corals or clams you have that need low flow
definitely make sure everything is still able to open their polyps and everything should be fine, and if the fish are having trouble swimming that could be a problem lol