diff --git a/mobs_fish/init.lua b/mobs_fish/init.lua
index 1fd1e57..e48ad45 100644
--- a/mobs_fish/init.lua
+++ b/mobs_fish/init.lua
@@ -1,18 +1,43 @@
 
 if mobs.mod and mobs.mod == "redo" then
 
+local SPRITE_VERSION = false	-- set to true to use upright sprites instead of meshes
+
 -- local variables
+	local l_spawn_in		= {"default:water_source", "default:water_flowing", "default:river_water_source", "default:river_water_flowing"}
+	local l_spawn_near		= {"default:sand","default:dirt","group:seaplants","group:seacoral"}
+	local l_spawn_chance	= 10000
+	local l_cc_hand			= 25
+	local l_cc_net			= 80
+	local l_water_level		= minetest.setting_get("water_level") - 1
 	local l_anims = {
 		speed_normal = 24,		speed_run = 24,
 		stand_start = 1,		stand_end = 80,
 		walk_start = 81,		walk_end = 155,
 		run_start = 81,			run_end = 155
 	}
-	local l_spawn_in		= {"default:water_source"}
-	local l_spawn_near		= {"default:sand","default:dirt","group:seaplants","group:seacoral"}
-	local l_spawn_chance	= 10000
-	local l_cc_hand			= 25
-	local l_cc_net			= 80
+	local l_visual = "mesh"
+	local l_visual_size = {x=.75, y=.75}
+	local l_clown_mesh = "animal_clownfish.b3d"
+	local l_trop_mesh = "fish_blue_white.b3d"	
+	local l_clown_textures = {
+		{"clownfish.png"},
+		{"clownfish2.png"}
+	}
+	local l_trop_textures = {
+		{"fish.png"},
+		{"fish2.png"},
+		{"fish3.png"}
+	}
+
+	if SPRITE_VERSION then
+		l_visual = "upright_sprite"
+		l_visual_size = {x=.5, y=.5}
+		l_clown_mesh = nil
+		l_trop_mesh = nil		
+		l_clown_textures = {{"animal_clownfish_clownfish_item.png"}}
+		l_trop_textures = {{"animal_fish_blue_white_fish_blue_white_item.png"}}
+	end
 
 -- Clownfish
 	mobs:register_mob("mobs_fish:clownfish", {
@@ -22,19 +47,16 @@ if mobs.mod and mobs.mod == "redo" then
 		hp_max = 4,
 		armor = 100,
 		collisionbox = {-0.25, -0.25, -0.25, 0.25, 0.25, 0.25},
-		visual = "mesh",
-		mesh = "animal_clownfish.b3d",
-		textures = {
-			{"clownfish.png"},
-			{"clownfish2.png"}
-		},
-		visual_size = {x=.75, y=.75},
+		rotate = 270,
+		visual = l_visual,
+		mesh = l_clown_mesh,
+		textures = l_clown_textures,
+		visual_size = l_visual_size,
 		makes_footstep_sound = false,
 		stepheight = 0.1,
 		fly = true,
 		fly_in = "default:water_source",
 		fall_speed = 0,
-		rotate = 270,
 		view_range = 8,
 		water_damage = 0,
 		lava_damage = 5,
@@ -45,7 +67,7 @@ if mobs.mod and mobs.mod == "redo" then
 		end
 	})
 	--name, nodes, neighbours, minlight, maxlight, interval, chance, active_object_count, min_height, max_height
-	mobs:spawn_specific("mobs_fish:clownfish", l_spawn_in, l_spawn_near, 5, 20, 30, l_spawn_chance, 1, -31000, 0)
+	mobs:spawn_specific("mobs_fish:clownfish", l_spawn_in, l_spawn_near, 5, 20, 30, l_spawn_chance, 1, -31000, l_water_level)
 	mobs:register_egg("mobs_fish:clownfish", "Clownfish", "animal_clownfish_clownfish_item.png", 0)
 
 -- Tropical fish
@@ -56,20 +78,16 @@ if mobs.mod and mobs.mod == "redo" then
 		hp_max = 4,
 		armor = 100,
 		collisionbox = {-0.25, -0.25, -0.25, 0.25, 0.25, 0.25},
-		visual = "mesh",
-		mesh = "fish_blue_white.b3d",
-		textures = {
-			{"fish.png"},
-			{"fish2.png"},
-			{"fish3.png"}
-		},
-		visual_size = {x=0.75, y=0.75},
+		rotate = 270,
+		visual = l_visual,
+		mesh = l_trop_mesh,
+		textures = l_trop_textures,
+		visual_size = l_visual_size,
 		makes_footstep_sound = false,
 		stepheight = 0.1,
 		fly = true,
 		fly_in = "default:water_source",
 		fall_speed = 0,
-		rotate = 270,
 		view_range = 8,
 		water_damage = 0,
 		lava_damage = 5,
@@ -80,7 +98,7 @@ if mobs.mod and mobs.mod == "redo" then
 		end
 	})
 	--name, nodes, neighbours, minlight, maxlight, interval, chance, active_object_count, min_height, max_height
-	mobs:spawn_specific("mobs_fish:tropical", l_spawn_in, l_spawn_near, 5, 20, 30, l_spawn_chance, 1, -31000, 0)
+	mobs:spawn_specific("mobs_fish:tropical", l_spawn_in, l_spawn_near, 5, 20, 30, l_spawn_chance, 1, -31000, l_water_level)
 	mobs:register_egg("mobs_fish:tropical", "Tropical fish", "animal_fish_blue_white_fish_blue_white_item.png", 0)
 
 end
diff --git a/mobs_sharks/SETTINGS.txt b/mobs_sharks/SETTINGS.txt
index a728aaf..bf27b35 100644
--- a/mobs_sharks/SETTINGS.txt
+++ b/mobs_sharks/SETTINGS.txt
@@ -5,4 +5,4 @@ ENABLE_SHARK_LARGE		= true
 ENABLE_SHARK_MEDIUM		= true
 ENABLE_SHARK_SMALL		= true
 
-HELP_WITH_EXPERIMENT		= true
+HELP_WITH_EXPERIMENT		= false