I purchased a Cleaner Wrasse for my 130. However, the Midas Blenny (which I have had for over 2 years), did not take kindly to the new addition. He immediately started nipping at the new wrasse. I have a feeling it is because he is long and slender like the blenny is. I put the cleaner wrasse in a acclimation box in the tank. The blenny continued to charge towards the glass after the Wrasse. How long should I keep the cleaner wrasse in the box before releasing him into the tank?