Murky vs Zarya
Murky can lane against Zarya. However she will always kill your pufferfish and you will need to use slime to clear the minion wave. Pay attention to Zaryas energy level. If it's high let her use it on minons or strucutures. Dive the minon wave and Zaraya when her enery is down. Try not to do any damage to Zaraya when her shields are up as that is how she gains enery.
When Murky gets Fish Tank Zaraya becomes the easist tank for Murky to kill. She has no escape. The only thing you need to do is not damage Araya when her shields are up.