diff --git a/tunnel_tube.lua b/tunnel_tube.lua
index a6633e1..7a0eb07 100644
--- a/tunnel_tube.lua
+++ b/tunnel_tube.lua
@@ -33,7 +33,7 @@ minetest.register_node("dfcaverns:tunnel_tube", {
 
 minetest.register_node("dfcaverns:tunnel_tube_fruiting_body", {
 	description = S("Tunnel Tube Fruiting Body"),
-	tiles = {"dfcaverns_tunnel_tube.png^[brighten"},
+	tiles = {"dfcaverns_tunnel_tube.png^[multiply:#b09090"},
 	paramtype2 = "facedir",
 	groups = {choppy = 3, oddly_breakable_by_hand=1, flammable = 2},
 	sounds = default.node_sound_wood_defaults(),
@@ -58,19 +58,19 @@ minetest.register_node("dfcaverns:tunnel_tube_fruiting_body", {
 	},
 })
 
-dfcaverns.tunnel_tube_def = {
-	axiom="FFcccccc&FFFFFdddR",
-	rules_c="/",
-	rules_d="F",
-	trunk="dfcaverns:tunnel_tube",
-	angle=20,
-	iterations=2,
-	random_level=0,
-	trunk_type="single",
-	thin_branches=true,
-	fruit="dfcaverns:tunnel_tube_fruiting_body",
-	fruit_chance=0
-}
+--dfcaverns.tunnel_tube_def = {
+--	axiom="FFcccccc&FFFFFdddR",
+--	rules_c="/",
+--	rules_d="F",
+--	trunk="dfcaverns:tunnel_tube",
+--	angle=20,
+--	iterations=2,
+--	random_level=0,
+--	trunk_type="single",
+--	thin_branches=true,
+--	fruit="dfcaverns:tunnel_tube_fruiting_body",
+--	fruit_chance=0
+--}
 
 minetest.register_node("dfcaverns:tunnel_tube_sapling", {
 	description = S("Tunnel Tube Spawn"),
@@ -96,10 +96,64 @@ minetest.register_node("dfcaverns:tunnel_tube_sapling", {
 	
 	on_timer = function(pos)
 		minetest.set_node(pos, {name="air"})
-		minetest.spawn_tree(pos, dfcaverns.tunnel_tube_def)
+		dfcaverns.spawn_tunnel_tube(pos)
 	end,
 })
 
+local tunnel_tube_directions = {
+	{x=1,y=0,z=0},
+	{x=-1,y=0,z=0},
+	{x=0,y=0,z=1},
+	{x=0,y=0,z=-1},
+}
+
+local tunnel_tube_curvature = {0,0,0,1,1,1,2,2,3,4}
+
 dfcaverns.spawn_tunnel_tube = function(pos)
-	minetest.spawn_tree(pos, dfcaverns.tunnel_tube_def)
-end
\ No newline at end of file
+	local direction = tunnel_tube_directions[math.random(1,4)]
+	local height = math.random(6,10)
+	local x, y, z = pos.x, pos.y, pos.z
+	local top_pos = vector.add(pos, vector.multiply(direction, tunnel_tube_curvature[height]))
+	top_pos.y = y + height - 1
+
+	local vm = minetest.get_voxel_manip()
+	local minp, maxp = vm:read_from_map(pos, top_pos)
+	local area = VoxelArea:new({MinEdge = minp, MaxEdge = maxp})
+	local data = vm:get_data()
+
+	dfcaverns.spawn_tunnel_tube_vm(area:indexp(pos), area, data, height, direction)
+
+	vm:set_data(data)
+	vm:write_to_map()
+	vm:update_map()	
+end
+
+local c_air = minetest.get_content_id("air")
+local c_ignore = minetest.get_content_id("ignore")
+local c_tunnel_tube = minetest.get_content_id("dfcaverns:tunnel_tube")
+local c_tunnel_tube_fruiting_body  = minetest.get_content_id("dfcaverns:tunnel_tube_fruiting_body")
+
+dfcaverns.spawn_tunnel_tube_vm = function(vi, area, data, height, direction)
+	if not height then height = math.random(6, 10) end
+	if not direction then direction = tunnel_tube_directions[math.random(1,4)] end
+	
+	local pos = area:position(vi)
+	local y = pos.y
+	local previous_vi = vi
+	for i = 1, height do
+		pos.y = y + i - 1
+		vi = area:indexp(vector.add(pos, vector.multiply(direction, tunnel_tube_curvature[i])))
+		if data[vi] == c_air or data[vi] == c_ignore then
+			previous_vi = vi
+			if i ~= height then
+				data[vi] = c_tunnel_tube
+			else
+				data[vi] = c_tunnel_tube_fruiting_body
+			end
+		else
+			data[previous_vi] = c_tunnel_tube_fruiting_body
+			break
+		end
+	end
+end
+