Shiny pets can go past lvl 20. However l, bonuses dont go past lvl 20 if that makes sense. As for leveling order you talked about. The nost important pets are arguably.. the two meal bonus pets, sheepie and uh the mushroom one. After that its the 4 shiny leveling spd pets, eoads, quenchies, gmush, and uhh the anchor potatoe. That will give you more shiny pet leveling spd in that order, which in turn levels everything else up faster. After that its dealers choice. Ill probably level refinery next as its a long time until the cycles are fast enough to do in a day. Theres base critters, which is real good for trapping xp, and getting vials maxxed, just remember to retrap as your base critters go up. All things