Monster Lab
One of the building that will be available to players once we arrived in FarmVille’s Haunted Hollow is the Monster Lab. It’s a breeding building where we place up to 20 Monsters inside the Monster Lab. Once you harvest the Monster Lab it will give “Serum” on which you can use to create more Monster by exchanging these serums. The more monster the Monster Lab has the more chances it gives rare color “Serums”. You can have multiple built Monster lab. All exchange Monster can be found in the Gift Box.
Monster Lab Building Stage:
Material parts needed to complete the Monster lab:
Rusty Gear, Metal Post and Thunder Cloud.
You can obtain the Rusty Gear in the Special Delivery Box. Just place or if you have an unfinished Monster lab before opening the Special Delivery Box.
Monster Lab current Monsters list:
Chickenpire (Blue Serum)
Frankensheep (Green Serum)
Monster Hog (Blue Serum)
Mummy Duck (Orange Serum)
Cow Horse (Green Serum)
Giant Moth (Orange Serum)
Fish Creature (Pink Serum)
Mega Monkey (Yellow Serum)
Lizard Monster (Pink Serum)
La Chupacabra (Yellow Serum)
Tips on how to get the serum you want:
If you’re aiming to get a specific color of serum for example a “Green Serum” the best way to get it is to remove all the monster in your Monster Lab and just place the monsters that gives “Green Serum” on this case the Frankensheep or the Cow Horse.
If you’re aiming to get “Orange Serum” then just place only the monster that gives “Orange Serum” like the Mummy Duck or Giant Moth. Don’t mix it with other monster like monster that gives “Blue Serum” or “Green Serum”.
Hi, can you please tell me what specific monster/s that can create different types of serum. i have a chickenpire, frankensheep and monster hog but they only create blue serum. please advice thanks.
The Lizard Monster and the Fish Creature may give Pink Monster Serum.
The Mega Monkey and the La Chupacabra may give Yellow Monster Serum.
The Giant Moth and Mummy Duck gives Orange Monster Serum.
The Cow Horse and Frankensheep may give Green Monster Serum.
The Monster Hog, Chickenpire will give Blue Serum.
If you have a Frankensheep and want to increase your chance of getting a Green Serum, try harvesting the Monster Lab by removing the Chickenpire and just leave the Frankensheep. Or build another Monster Lab and place them in separate.
thank you very much for answering my query and for the added info. that’s one of the reason i like this website more power 🙂
Every post I see says the horse costume cow gives green serum. My horse costume cow won’t go into the monster lab. But my cow horse will. I’m not sure if it’s a glitch, but that’s what I’ve found.
Actually you’re right 🙂 It is the “Cow Horse”
that gives Green Serum not Horse Costume Cow 
, the Horse Costume Cow will not go to Monster Lab but in Cow Pasture only. Image HERE
Thanks Jane, we updated the post.
I need help completing my monster lab. I have 4 out of 10 rusty posts and 4 out of 10 thunderclouds, and 3 rusty gears.
Can someone give me at least 6 more rusty posts and thunderclouds, and 7 rusty gears?
Nathan, if i’m correct, i completed mine with SBD’s , i don’t know if it was a glitch or not, just try and see if it works ..
where do you get a mega monkey to make the yellow serum?
From “La Chupacabra”, place it in a separate monster lab to get a guaranteed yellow serum when you harvest it.