So I recently got alchemy to LVL 1000 after grinder for many days, but most potions are so bad I wouldn't recommend anyone to max out their alchemy. Most potion last way too short. Potions like splash resistance II last for 8secs and unless you through it above your head you'll get a max of 5sec. Not all pots are bad though health boost is 4mins or 1.5 mins which I think is good. I believe all custom pots should have the same length as vanilla pots. So what I mean is all pots that are LVL 1 have a length of 8mins and all pots that are LVL 2 have a length of 1.5mins. P.S still can't get quartz anywhere