I completely and utterly messed this up . . . accidentally headbutted Turbo so he stunned and swapped to Whiplash. Brought in Carp to take him out and then Hermit Crab finished off Turbo. Still won it first try!
I managed to diminish teh RNG on this fight by swapping the 'hard to get' Tiny Blue Carp for the cheaper but still easily obtainable Slithershock Elver, 1-1-2. It is preferred to use pet Tracker addon or any addon that shows opponent's pet's CD on skills, so you can play with that.
After the 'Pinch or death' line:
Bring in your Slithershock Elver
Prio 1: Dodge If Whiplast has 1 CD left on sandstorm, then on CD
Prio 2: Pump if his block is up or used, then pump next turn if coccon strike has 2+ on CD
Prio 3: Deep Bite in between
It took about 5 tries for me. I kept dying one turn too soon. There must be a breed dependency. It finally worked for me when Headbutt caused a stun and the flyer was swapped in. I was able to take out the flyer easily with the carp when the turtle died. The rest was trivial.