diff --git a/src/main/java/com/github/chainmailstudios/astromine/registry/AstromineBreathables.java b/src/main/java/com/github/chainmailstudios/astromine/registry/AstromineBreathables.java
index a6304ba1c..48065c9eb 100644
--- a/src/main/java/com/github/chainmailstudios/astromine/registry/AstromineBreathables.java
+++ b/src/main/java/com/github/chainmailstudios/astromine/registry/AstromineBreathables.java
@@ -7,6 +7,7 @@
 public class AstromineBreathables {
 	public static void initialize() {
 		BreathableRegistry.INSTANCE.register(EntityType.COD, AstromineTags.WATER_BREATHABLE);
+		BreathableRegistry.INSTANCE.register(EntityType.DOLPHIN, AstromineTags.NORMAL_BREATHABLE, AstromineTags.WATER_BREATHABLE);
 		BreathableRegistry.INSTANCE.register(EntityType.DROWNED, AstromineTags.NORMAL_BREATHABLE, AstromineTags.WATER_BREATHABLE);
 		BreathableRegistry.INSTANCE.register(EntityType.ELDER_GUARDIAN, AstromineTags.WATER_BREATHABLE);
 		BreathableRegistry.INSTANCE.register(EntityType.GUARDIAN, AstromineTags.WATER_BREATHABLE);
diff --git a/src/main/resources/data/astromine/tags/entity_types/does_not_breathe.json b/src/main/resources/data/astromine/tags/entity_types/does_not_breathe.json
index 51903323b..ecdc4c9b9 100644
--- a/src/main/resources/data/astromine/tags/entity_types/does_not_breathe.json
+++ b/src/main/resources/data/astromine/tags/entity_types/does_not_breathe.json
@@ -2,6 +2,8 @@
 	"replace": false,
 	"values": [
 		"minecraft:iron_golem",
-		"minecraft:armor_stand"
+		"minecraft:armor_stand",
+		"astromine:space_slime",
+		"astromine:super_space_slime"
 	]
 }
\ No newline at end of file