I just added 2 rio 1700's to my 55 and my frogspawns and hammerhead closed up like i expected them too but havn't opened back up yet...do you guys think this is too much flow on them or are they just adjusting to the flow....I had only a maxi 1200 running by itself for about a month and a half b/c my other two powerheads stopped working....They corals are in the middle of the tank and the jets arn't right on them but with how narrow a 55 is they are getting flow....What do you LPS experts think?