diff --git a/mods/mobs_mc/chicken.lua b/mods/mobs_mc/chicken.lua
index 0736106716..31afd42acd 100644
--- a/mods/mobs_mc/chicken.lua
+++ b/mods/mobs_mc/chicken.lua
@@ -119,7 +119,7 @@ mobs:register_mob("mobs_mc:chicken", {
 	
 })
 
---mobs:register_spawn("mobs_mc:chicken", {"mcl_core:dirt_with_grass"}, 20, 8, 7000, 1, 31000)
+mobs:register_spawn("mobs_mc:chicken", {"mcl_core:dirt_with_grass"}, 20, 8, 7000, 1, 31000)
 
 
 -- compatibility
diff --git a/mods/mobs_mc/cow.lua b/mods/mobs_mc/cow.lua
index 23fe8300ad..3316c6c5c3 100644
--- a/mods/mobs_mc/cow.lua
+++ b/mods/mobs_mc/cow.lua
@@ -125,7 +125,7 @@ mobs:register_mob("mobs_mc:cow", {
 	end,	
 })
 
---mobs:register_spawn("mobs_mc:cow", {"mcl_core:dirt_with_grass"}, 20, 8, 7000, 1, 31000)
+mobs:register_spawn("mobs_mc:cow", {"mcl_core:dirt_with_grass"}, 20, 8, 7000, 1, 31000)
 
 
 -- compatibility
diff --git a/mods/mobs_mc/ghast.lua b/mods/mobs_mc/ghast.lua
index 4233503a53..0ff55456b1 100644
--- a/mods/mobs_mc/ghast.lua
+++ b/mods/mobs_mc/ghast.lua
@@ -81,7 +81,7 @@ mobs:register_mob("mobs_mc:ghast", {
 })
 
 
-mobs:register_spawn("mobs_mc:ghast", {"mcl_core:flowing_lava", "nether:rack","air"}, 17, -1, 5000, 1, -2000)
+mobs:register_spawn("mobs_mc:ghast", {"mcl_core:lava_flowing", "mcl_nether:netherrack", "air"}, 17, -1, 5000, 1, -2000)
 
 -- Ghast fireball
 mobs:register_arrow("mobs_mc:ghast_fireball", {
diff --git a/mods/mobs_mc/horse.lua b/mods/mobs_mc/horse.lua
index 1bb309ea2c..f665e3d6b3 100644
--- a/mods/mobs_mc/horse.lua
+++ b/mods/mobs_mc/horse.lua
@@ -318,9 +318,9 @@ mobs:register_mob("mobs_mc:horse3", {
 		end
 	end,
 })
-mobs:register_spawn("mobs_mc:horse", {"mcl_core:dirt_with_dry_grass","es:strange_grass","es:aiden_grass"}, 20, 12, 21000, 1, 12)
-mobs:register_spawn("mobs_mc:horse2", {"mcl_core:dirt_with_dry_grass"}, 20, 12, 23000, 1, 31000)
-mobs:register_spawn("mobs_mc:horse3", {"mcl_core:desert_sand"}, 20, 8, 17000, 1, 5)
+mobs:register_spawn("mobs_mc:horse", {"mcl_core:dirt_with_grass", "mcl_core:dirt"}, 20, 12, 21000, 1, 12)
+mobs:register_spawn("mobs_mc:horse2", {"mcl_core:dirt_with_grass", "mcl_core:dirt"}, 20, 12, 23000, 1, 31000)
+mobs:register_spawn("mobs_mc:horse3", {"mcl_core:sand", "mcl_core:redsand"}, 20, 8, 17000, 1, 5)
 
 
 -- compatibility
diff --git a/mods/mobs_mc/sheep.lua b/mods/mobs_mc/sheep.lua
index e1a78826cf..8edfc85b6a 100644
--- a/mods/mobs_mc/sheep.lua
+++ b/mods/mobs_mc/sheep.lua
@@ -124,7 +124,7 @@ print(item:get_name(), minetest.get_item_group(item:get_name(), "dye"))
 		end
 	end,
 })
---mobs:register_spawn("mobs_mc:sheep", {"mcl_core:dirt_with_grass"}, 20, 12, 5000, 2, 31000)
+mobs:register_spawn("mobs_mc:sheep", {"mcl_core:dirt_with_grass"}, 20, 12, 5000, 2, 31000)
 
 
 -- compatibility
diff --git a/mods/mobs_mc/slimes.lua b/mods/mobs_mc/slimes.lua
index 3dc735d7f2..81ade78ee0 100644
--- a/mods/mobs_mc/slimes.lua
+++ b/mods/mobs_mc/slimes.lua
@@ -182,9 +182,9 @@ mobs:register_mob("mobs_mc:greenbig", {
 		end
 	end,
 })
-mobs:register_spawn("mobs_mc:greensmall", {"mcl_core:flowing_water", "mcl_core:mossycobble"}, 7, -1, 5000, 4, 31000)
-mobs:register_spawn("mobs_mc:greenmedium", {"mcl_core:flowing_water", "mcl_core:mossycobble"}, 7, -1, 5000, 4, 31000)
-mobs:register_spawn("mobs_mc:greenbig", {"mcl_core:flowing_water", "mcl_core:mossycobble"}, 7, -1, 5000, 4, 31000)
+mobs:register_spawn("mobs_mc:greensmall", {"mcl_core:water_flowing", "mcl_core:mossycobble"}, 7, -1, 5000, 4, 31000)
+mobs:register_spawn("mobs_mc:greenmedium", {"mcl_core:water_flowing", "mcl_core:mossycobble"}, 7, -1, 5000, 4, 31000)
+mobs:register_spawn("mobs_mc:greenbig", {"mcl_core:water_flowing", "mcl_core:mossycobble"}, 7, -1, 5000, 4, 31000)
 
 
 
diff --git a/mods/mobs_mc/villager.lua b/mods/mobs_mc/villager.lua
index 70d300d807..f2291c6af6 100644
--- a/mods/mobs_mc/villager.lua
+++ b/mods/mobs_mc/villager.lua
@@ -168,7 +168,6 @@ mobs:register_mob("mobs_mc:villager", {
 	
 	]]
 })
---mobs:register_spawn("mobs_mc:villager", {"mcl_core:gravel"}, 20, 8, 50, 8, 31000)
 mobs:register_spawn("mobs_mc:villager", {"mcl_core:gravel"}, 20, 8, 500, 2, 31000)
 
 
diff --git a/mods/mobs_mc/zombiepig.lua b/mods/mobs_mc/zombiepig.lua
index e2fab14f1a..d710e68e73 100644
--- a/mods/mobs_mc/zombiepig.lua
+++ b/mods/mobs_mc/zombiepig.lua
@@ -82,8 +82,8 @@ mobs:register_mob("mobs_mc:pigman", {
 	view_range = 16,
 	attack_type = "dogfight",
 })
-mobs:register_spawn("mobs_mc:pigman", {"nether:rack"},  17, -1, 5000, 3, -2000)
-mobs:register_spawn("mobs_mc:pigman", {"nether:portal"}, 15, -1, 500, 4, 31000)
+mobs:register_spawn("mobs_mc:pigman", {"mcl_nether:netherrack"},  17, -1, 5000, 3, -2000)
+mobs:register_spawn("mobs_mc:pigman", {"mcl_nether:portal"}, 15, -1, 500, 4, 31000)
 mobs:register_spawn("mobs_mc:pigman", {"mcl_core:obsidian"}, 17, -1, 1900, 1, 31000)