JEI & Jade

Both are optional. Productive Slimes works the same without them.

JEI

Just Enough Items gets three extra recipe pages:

Page	Shows
Slime Breeding	Both parents with the food that starts breeding, the catalyst block and the baby. Every type also has a page for breeding two of itself.
Slime Squeezing	Each slimeball and the resource it gives in the Slime Squeezer
Slime Pen Production	The jarred slime, its optional food, its slimeballs and its pen time

Look up any slime's spawn egg or jar with R to see how to breed it, or with U to see what it is used for. Look up a slimeball with R to see which slime makes it. JEI shows every type as its own item. Hover the slots on the breeding page for tips.

In the Slime Pen and Slime Squeezer, click the progress arrow to open that machine's JEI page.

Slime Crystal and Slime Crystal Ore also have info pages explaining where to find them.

Jade

Jade adds details when you look at things:

• Slimes: type, size, growth toward adulthood, time until its next slimeball, and its breeding cooldown or whether it is looking for a partner.
• Slime Pen: time until the next batch or why it stopped, how many fed batches are left, and how much food is in the food slot.