Aron Question

Thats very good. You can go ahead and evolve it, but first consider how rare Aron is in your biome. For example, in mine its really common. So common I evolved a garbage one just for the pokedex entry because I had candy to spare.
If Aron is rare, and you think you wont find enough candy for another evolve, then you could wait until you have 250 candies.
Plus, your Aron is low level. It isnt worth powering up.
Like everyone says, just wait till you get to lvl 30 to start evolving and powering up.

I suggest DON'T evolve aron into Aggron, unless it is a very low level one.
Like level 1-5 maximum.
Aggron gets always autoselected in battles and raids, and ut is annoying, because it is really bad at attacking anything, atm.

I always get weather boosted Arons. I haven’t even spent any stardust on one yet. My evolved Aggrons are level 35 caught arons. I would rather evolve a level 35 Aron with decent IVs then a low level one with great IVs. Aggron is only good as a tank in raids. No use in powering one up, unless you get a 100.

Just evolve but dont power up, Aggron is just for Pokedex as it is very bad attacker and it SUCKS in gym defending. One Machamp and it is gone in SECONDS.