HI ! I am new to the parrot world. I just purchased a blood parrot 2 months ago and he was always hiding, which I gathered from this sight that it is normal. I have a major problem now. My husband and I were cleaning out the tank( 75 gallons) changing water and doing regular maintenance . Well now the parrot has completely disappeared ! He hasn't jumped out nor have we found him floating at the top.we have 1 angel fish, 4 tiger barbs and some mollies, 2 cory catfish and a pleco.So we have almost completely taken the tank apart trying to find him, can they bury themselves in the gravel ? any idea what happened to him ? thanks for any help.