diff --git a/tests/test_auction_flow.sh b/tests/test_auction_flow.sh
index 42afcf1..3137447 100755
--- a/tests/test_auction_flow.sh
+++ b/tests/test_auction_flow.sh
@@ -19,6 +19,21 @@ colineard tx colinearcore new-auction asdf asdf 2000 uusdc $(now + 8200000) \
     -y --from bob \
     | expect_fail "Can't create auction above max lease period" 
 
+colineard tx colinearcore new-auction asdf asdf 2000 uusdc $(now + 3700) \
+    '[]' '[]' 4 0 1000 50 \
+    -y --from bob \
+    | expect_fail "Can't create an auction with 0 GPUs" 
+
+colineard tx colinearcore new-auction asdf asdf 2000 uusdc $(now + 3700) \
+    '[]' '["gtx-1050-ti"]' 0 0 1000 50 \
+    -y --from bob \
+    | expect_fail "Can't create an auction with 0 cores" 
+
+colineard tx colinearcore new-auction asdf asdf 2000 uusdc $(now + 3700) \
+    '[]' '["gtx-1050-ti"]' 0 0 1000 50 \
+    -y --from bob \
+    | expect_fail "Can't create an auction with sub-25GB storage" 
+
 before=$(get_balance $BOB uusdc)
 
 colineard tx colinearcore new-auction asdf asdf 2000 uusdc $(now + 3700) \
diff --git a/x/colinearcore/keeper/msg_server_new_auction.go b/x/colinearcore/keeper/msg_server_new_auction.go
index 974fcd6..352fbf9 100644
--- a/x/colinearcore/keeper/msg_server_new_auction.go
+++ b/x/colinearcore/keeper/msg_server_new_auction.go
@@ -152,6 +152,11 @@ func (k *Keeper) ValidateAuctionHardware(ctx sdk.Context, a types.Auction) error
 		return errors.New("GPU list not found")
 	}
 
+	// move these to module params later
+	if len(a.Gpus) == 0 || len(a.Gpus) > 20 {
+		return fmt.Errorf("must order between 1 and 20 GPUs (got %d)", len(a.Gpus))
+	}
+
 	for _, gpu := range a.Gpus {
 		if _, ok := k.GetParams(ctx).GpuModels[gpu]; !ok {
 			return fmt.Errorf("GPU model %s invalid", gpu)
@@ -159,11 +164,11 @@ func (k *Keeper) ValidateAuctionHardware(ctx sdk.Context, a types.Auction) error
 	}
 
 	// move these to module params later
-
 	if a.CpuCores < 1 || a.CpuCores > 12 {
 		return fmt.Errorf("CPU Cores must be between 1 and 12 (got %d)", a.CpuCores)
 	}
 
+	// move these to module params later
 	if a.StorageGb < 25 || a.StorageGb > 2000 {
 		return fmt.Errorf("storage must be between 25GB and 2TB (got %dGB)", a.StorageGb)
 	}