diff --git a/1.6/1.6/Defs/Thing_Misc/Weapons/ARA_Weapon_new.xml b/1.6/1.6/Defs/Thing_Misc/Weapons/ARA_Weapon_new.xml
index 8e773a9..f55ffd8 100644
--- a/1.6/1.6/Defs/Thing_Misc/Weapons/ARA_Weapon_new.xml
+++ b/1.6/1.6/Defs/Thing_Misc/Weapons/ARA_Weapon_new.xml
@@ -125,7 +125,7 @@
         <hasStandardCommand>true</hasStandardCommand>
         <forceNormalTimeSpeed>false</forceNormalTimeSpeed>
         <warmupTime>1.0</warmupTime>
-        <defaultProjectile>ARA_Proj_StrongSludgeSpray</defaultProjectile>
+        <defaultProjectile>ARA_Proj_StrongSludgeSpray_Eco</defaultProjectile>
         <isMortar>false</isMortar>
         <requireLineOfSight>false</requireLineOfSight>
         <minRange>3</minRange>
@@ -162,4 +162,34 @@
       </li>
     </comps>
   </ThingDef>
+
+  <ThingDef>
+    <defName>ARA_Proj_StrongSludgeSpray_Eco</defName>
+    <label>阿拉克涅虫族酸液</label>
+    <thingClass>Projectile_Liquid</thingClass>
+    <category>Projectile</category>
+    <tickerType>Normal</tickerType>
+    <altitudeLayer>Projectile</altitudeLayer>
+    <useHitPoints>False</useHitPoints>
+    <neverMultiSelect>True</neverMultiSelect>
+    <graphicData>
+      <texPath>Things/Projectile/SludgeSpray</texPath>
+      <graphicClass>Graphic_Random</graphicClass>
+      <shaderType>MoteGlow</shaderType>
+      <drawSize>0.85</drawSize>
+    </graphicData>
+    <projectile>
+      <damageDef>ARA_AcidBurn</damageDef>
+      <speed>25</speed>
+      <damageAmountBase>2</damageAmountBase>
+      <arcHeightFactor>0.4</arcHeightFactor>
+      <armorPenetrationBase>0.1</armorPenetrationBase>
+      <stoppingPower>1</stoppingPower>
+      <shadowSize>0</shadowSize>
+      <terrainChance>0.75</terrainChance>
+      <filth>Filth_SpentAcid</filth>
+      <filthCount>1</filthCount>
+      <filthChance>0.25</filthChance>
+    </projectile>
+  </ThingDef>
 </Defs>
\ No newline at end of file