diff --git a/modular_citadel/code/datums/status_effects/chems.dm b/modular_citadel/code/datums/status_effects/chems.dm
index 443633791b..6b0e4fb318 100644
--- a/modular_citadel/code/datums/status_effects/chems.dm
+++ b/modular_citadel/code/datums/status_effects/chems.dm
@@ -81,7 +81,7 @@
 			playsound(o.loc, 'sound/items/poster_ripped.ogg', 50, 1)
 			to_chat(owner, "<span class='warning'>Your enormous breasts are way too large to fit anything over them!</b></span>")
 	if (B.size == "huge")
-		if(prob(2))
+		if(prob(1))
 			to_chat(owner, "<span class='notice'>Your back is feeling a little sore.</span>")
 			var/target = o.get_bodypart(BODY_ZONE_CHEST)
 			o.apply_damage(0.1, BRUTE, target)
@@ -103,8 +103,7 @@
 			if(10 to INFINITY)
 				if (B.breast_sizes[B.prev_size] != B.breast_sizes[B.size])
 					to_chat(H, "<span class='warning'>Your indulgent busom is so substantial, it's affecting your movements!</b></span>")
-		if(prob(5))
-
+		if(prob(2))
 			to_chat(owner, "<span class='notice'>Your back is feeling a little sore.</span>")
 		..()
 
diff --git a/modular_citadel/code/modules/reagents/chemistry/recipes/fermi.dm b/modular_citadel/code/modules/reagents/chemistry/recipes/fermi.dm
index 00b26f90a9..a7a69e2025 100644
--- a/modular_citadel/code/modules/reagents/chemistry/recipes/fermi.dm
+++ b/modular_citadel/code/modules/reagents/chemistry/recipes/fermi.dm
@@ -46,8 +46,7 @@
 			R.add_reagent(reagent.id, reagent.volume)
 		else if (istype(reagent, /datum/reagent/toxin/plasma))
 			R.add_reagent(reagent.id, reagent.volume) //for !FUN! (am I doing this right?)
-		continue //Only allow fermichems into the mix (fermi explosions are handled elsewhere and it's a huge pain)
-		//R.add_reagent(reagent, reagent.volume)
+		continue //Only allow fermichems into the mix (specific fermi explosions are handled elsewhere)
 		if (reagent.purity < 0.6)
 			ImpureTot = (ImpureTot + (1-reagent.purity)) / 2
 
@@ -106,7 +105,7 @@
 	name = "Synthetic-derived growth factor"
 	id = "SDGF"
 	results = list("SDGF" = 0.3)
-	required_reagents = list("stable_plasma" = 0.5, "slimejelly" = 0.5, "synthflesh" = 0.1, "blood" = 0.1)
+	required_reagents = list("stable_plasma" = 0.5, "slimejelly" = 0.5, "uranium" = 0.5, "synthflesh" = 0.5, "blood" = 0.5)
 	mix_message = "the reaction gives off a blorble!"
 	//FermiChem vars:
 	OptimalTempMin 		= 600 		// Lower area of bell curve for determining heat based rate reactions
@@ -207,7 +206,7 @@
 	name = "Astrogen"
 	id = "astral"
 	results = list("astral" = 0.5)
-	required_reagents = list("eigenstate" = 0.1, "plasma" = 0.1, "synaptizine" = 0.1, "aluminium" = 0.5)
+	required_reagents = list("eigenstate" = 0.1, "plasma" = 0.3, "synaptizine" = 0.1, "aluminium" = 0.5)
 	//FermiChem vars:
 	OptimalTempMin 			= 700
 	OptimalTempMax			= 800