diff --git a/init.lua b/init.lua
index e1f3f9c..384e1d8 100644
--- a/init.lua
+++ b/init.lua
@@ -115,6 +115,12 @@ minetest.register_on_generated(function(minp, maxp, seed)
 	--grab content IDs
 	local c_air = minetest.get_content_id("air")
 	local c_stone = minetest.get_content_id("default:stone")
+	
+	if (minetest.get_modpath("moontest")) then
+		c_air = minetest.get_content_id("moontest:vacuum")
+		c_stone = minetest.get_content_id("moontest:stone")
+	end
+	
 	local c_water = minetest.get_content_id("default:water_source")
 	local c_lava = minetest.get_content_id("default:lava_source")
 	local c_ice = minetest.get_content_id("default:ice")
diff --git a/nodes.lua b/nodes.lua
index e2cac65..a8db708 100644
--- a/nodes.lua
+++ b/nodes.lua
@@ -525,7 +525,7 @@ minetest.register_node("caverealms:constant_flame", {
 	}},
 	inventory_image = "fire_basic_flame.png",
 	light_source = 14,
-	groups = {igniter=2,dig_immediate=3,hot=3},
+	groups = {igniter=2,dig_immediate=3,hot=3, not_in_creative_inventory=1},
 	drop = '',
 	walkable = false,
 	buildable_to = true,
@@ -545,7 +545,7 @@ minetest.register_node("caverealms:s_chest", {
 	description = "Trying to rob the bank before it's opened, eh?",
 	tiles = {"default_chest_front.png"},
 	paramtype2 = "facedir",
-	groups = {choppy=3,oddly_breakable_by_hand=2,cavechest=1},
+	groups = {choppy=3,oddly_breakable_by_hand=2,cavechest=1, not_in_creative_inventory=1},
 })
 
 --hacky schematic placers
@@ -553,13 +553,13 @@ minetest.register_node("caverealms:s_chest", {
 minetest.register_node("caverealms:s_fountain", {
 	description = "A Hack like you should know what this does...",
 	tiles = {"caverealms_stone_eyes.png"},
-	groups = {crumbly=3, schema=1},
+	groups = {crumbly=3, schema=1, not_in_creative_inventory=1},
 })
 
 minetest.register_node("caverealms:s_fortress", {
 	description = "A Hack like you should know what this does...",
 	tiles = {"caverealms_stone_eyes.png"},
-	groups = {crumbly=3, schema=1},
+	groups = {crumbly=3, schema=1, not_in_creative_inventory=1},
 })
 
 --dungeon master statue (nodebox)