diff --git a/kubejs/data/tfg/worldgen/configured_feature/mars/surface/flamaea.json b/kubejs/data/tfg/worldgen/configured_feature/mars/surface/flamaea.json
index c7d23a7b5..5ca07f8fa 100644
--- a/kubejs/data/tfg/worldgen/configured_feature/mars/surface/flamaea.json
+++ b/kubejs/data/tfg/worldgen/configured_feature/mars/surface/flamaea.json
@@ -16,7 +16,7 @@
 			"placement": [
 				{
 					"type": "minecraft:heightmap",
-					"heightmap": "WORLD_SURFACE"
+					"heightmap": "MOTION_BLOCKING"
 				},
 				{
 					"type": "minecraft:block_predicate_filter",
@@ -28,9 +28,9 @@
 								"blocks": "minecraft:air"
 							},
 							{
-								"type": "minecraft:matching_block_tag",
+								"type": "minecraft:matching_blocks",
 								"offset": [ 0, -1, 0 ],
-								"tag": "tfg:fluid/semiheavy_ammoniacal_water"
+								"blocks": "tfg:fluid/semiheavy_ammoniacal_water"
 							}
 						]
 					}
@@ -38,7 +38,7 @@
 			]
 		},
 		"tries": 16,
-		"xz_spread": 8,
-		"y_spread": 1
+		"xz_spread": 10,
+		"y_spread": 0
 	}
 }
\ No newline at end of file
diff --git a/kubejs/data/tfg/worldgen/configured_feature/mars/surface/lacugrove.json b/kubejs/data/tfg/worldgen/configured_feature/mars/surface/lacugrove.json
index 6e6d53a9d..6baefb097 100644
--- a/kubejs/data/tfg/worldgen/configured_feature/mars/surface/lacugrove.json
+++ b/kubejs/data/tfg/worldgen/configured_feature/mars/surface/lacugrove.json
@@ -16,7 +16,7 @@
 			"placement": [
 				{
 					"type": "minecraft:heightmap",
-					"heightmap": "WORLD_SURFACE"
+					"heightmap": "MOTION_BLOCKING"
 				},
 				{
 					"type": "minecraft:block_predicate_filter",
@@ -28,9 +28,9 @@
 								"blocks": "minecraft:air"
 							},
 							{
-								"type": "minecraft:matching_block_tag",
+								"type": "minecraft:matching_blocks",
 								"offset": [ 0, -1, 0 ],
-								"tag": "tfg:fluid/semiheavy_ammoniacal_water"
+								"blocks": "tfg:fluid/semiheavy_ammoniacal_water"
 							}
 						]
 					}
@@ -38,7 +38,7 @@
 			]
 		},
 		"tries": 16,
-		"xz_spread": 8,
-		"y_spread": 1
+		"xz_spread": 5,
+		"y_spread": 0
 	}
 }
\ No newline at end of file
diff --git a/kubejs/data/tfg/worldgen/placed_feature/mars/surface/flamaea.json b/kubejs/data/tfg/worldgen/placed_feature/mars/surface/flamaea.json
index 1d9b3cc95..ddd144d0f 100644
--- a/kubejs/data/tfg/worldgen/placed_feature/mars/surface/flamaea.json
+++ b/kubejs/data/tfg/worldgen/placed_feature/mars/surface/flamaea.json
@@ -8,6 +8,10 @@
 		{
 			"type": "minecraft:in_square"
 		},
+		{
+			"type": "minecraft:heightmap",
+			"heightmap": "MOTION_BLOCKING"
+		},
 		{
 			"type": "minecraft:biome"
 		}
diff --git a/kubejs/data/tfg/worldgen/placed_feature/mars/surface/lacugrove.json b/kubejs/data/tfg/worldgen/placed_feature/mars/surface/lacugrove.json
index 45e97a873..31c2e1e56 100644
--- a/kubejs/data/tfg/worldgen/placed_feature/mars/surface/lacugrove.json
+++ b/kubejs/data/tfg/worldgen/placed_feature/mars/surface/lacugrove.json
@@ -10,6 +10,10 @@
 		},
 		{
 			"type": "minecraft:biome"
+		},
+		{
+			"type": "minecraft:heightmap",
+			"heightmap": "MOTION_BLOCKING"
 		}
 	]
 }
\ No newline at end of file