diff --git a/home-mixer/filters/oon_nsfw_simclusters_filter.rs b/home-mixer/filters/oon_nsfw_simclusters_filter.rs
index 0ab56ff8..3bb2ba00 100644
--- a/home-mixer/filters/oon_nsfw_simclusters_filter.rs
+++ b/home-mixer/filters/oon_nsfw_simclusters_filter.rs
@@ -1,14 +1,31 @@
 use crate::models::candidate::PostCandidate;
 use crate::models::query::ScoredPostsQuery;
-use crate::params::EnableSimclustersSource;
+use crate::params::{
+    EnablePhoenixMOESource, EnablePhoenixSource, EnableSimclustersSource, EnableTweetMixerSource,
+};
 use xai_candidate_pipeline::filter::{Filter, FilterResult};
 use xai_home_mixer_proto::ServedType;
 
 pub struct OONNsfwSimclustersFilter;
 
+fn is_oon_retrieval(served_type: Option<ServedType>) -> bool {
+    matches!(
+        served_type,
+        Some(ServedType::ForYouSimclusters)
+            | Some(ServedType::ForYouPhoenixRetrieval)
+            | Some(ServedType::ForYouPhoenixRetrievalMoe)
+            | Some(ServedType::ForYouTweetMixer)
+    )
+}
+
 impl Filter<ScoredPostsQuery, PostCandidate> for OONNsfwSimclustersFilter {
     fn enable(&self, query: &ScoredPostsQuery) -> bool {
-        query.params.get(EnableSimclustersSource)
+        !query.in_network_only
+            && (query.params.get(EnableSimclustersSource)
+                || query.params.get(EnablePhoenixSource)
+                || query.params.get(EnablePhoenixMOESource)
+                || query.params.get(EnableTweetMixerSource)
+                || query.is_topic_request())
     }
 
     fn filter(
@@ -17,7 +34,7 @@ impl Filter<ScoredPostsQuery, PostCandidate> for OONNsfwSimclustersFilter {
         candidates: Vec<PostCandidate>,
     ) -> FilterResult<PostCandidate> {
         let (removed, kept): (Vec<_>, Vec<_>) = candidates.into_iter().partition(|c| {
-            c.served_type == Some(ServedType::ForYouSimclusters)
+            is_oon_retrieval(c.served_type)
                 && c.in_network == Some(false)
                 && c.nsfw_author == Some(true)
         });
@@ -25,3 +42,131 @@ impl Filter<ScoredPostsQuery, PostCandidate> for OONNsfwSimclustersFilter {
         FilterResult { kept, removed }
     }
 }
+
+#[cfg(test)]
+mod tests {
+    use super::*;
+    use xai_home_mixer_proto::ServedType;
+
+    fn candidate(
+        tweet_id: u64,
+        served_type: Option<ServedType>,
+        in_network: Option<bool>,
+        nsfw_author: Option<bool>,
+    ) -> PostCandidate {
+        PostCandidate {
+            tweet_id,
+            served_type,
+            in_network,
+            nsfw_author,
+            ..Default::default()
+        }
+    }
+
+    fn query_with_flags(flags: &[(&str, &str)]) -> ScoredPostsQuery {
+        let mut query = ScoredPostsQuery::default();
+        let fs = xai_feature_switches::FeatureSwitches::new(vec![]).unwrap();
+        let mut results =
+            fs.match_recipient(&xai_feature_switches::RecipientBuilder::new().build());
+        for (key, value) in flags {
+            results.override_fs(key.to_string(), value);
+        }
+        query.params = results.into();
+        query
+    }
+
+    #[test]
+    fn drops_simclusters_phoenix_moe_and_tweet_mixer_nsfw_authors() {
+        let filter = OONNsfwSimclustersFilter;
+        let query = ScoredPostsQuery::default();
+        let candidates = vec![
+            candidate(
+                1,
+                Some(ServedType::ForYouSimclusters),
+                Some(false),
+                Some(true),
+            ),
+            candidate(
+                2,
+                Some(ServedType::ForYouPhoenixRetrieval),
+                Some(false),
+                Some(true),
+            ),
+            candidate(
+                3,
+                Some(ServedType::ForYouPhoenixRetrievalMoe),
+                Some(false),
+                Some(true),
+            ),
+            candidate(
+                4,
+                Some(ServedType::ForYouTweetMixer),
+                Some(false),
+                Some(true),
+            ),
+            candidate(
+                5,
+                Some(ServedType::ForYouInNetwork),
+                Some(true),
+                Some(true),
+            ),
+            candidate(
+                6,
+                Some(ServedType::ForYouPhoenixRetrieval),
+                Some(true),
+                Some(true),
+            ),
+            candidate(
+                7,
+                Some(ServedType::ForYouPhoenixRetrieval),
+                Some(false),
+                Some(false),
+            ),
+            candidate(
+                8,
+                Some(ServedType::ForYouPhoenixRetrieval),
+                Some(false),
+                None,
+            ),
+        ];
+
+        let result = filter.filter(&query, candidates);
+        let removed: Vec<u64> = result.removed.iter().map(|c| c.tweet_id).collect();
+        let kept: Vec<u64> = result.kept.iter().map(|c| c.tweet_id).collect();
+        assert_eq!(removed, vec![1, 2, 3, 4]);
+        assert_eq!(kept, vec![5, 6, 7, 8]);
+    }
+
+    #[test]
+    fn enable_when_phoenix_on_and_simclusters_off() {
+        let filter = OONNsfwSimclustersFilter;
+        let query = query_with_flags(&[
+            ("rust_home_mixer_enable_simclusters_source", "false"),
+            ("rust_home_mixer_enable_phoenix_source", "true"),
+            ("rust_home_mixer_enable_phoenix_moe_source", "false"),
+            ("rust_home_mixer_enable_tweet_mixer_source", "false"),
+        ]);
+        assert!(filter.enable(&query));
+    }
+
+    #[test]
+    fn disable_on_in_network_only() {
+        let filter = OONNsfwSimclustersFilter;
+        let mut query = query_with_flags(&[("rust_home_mixer_enable_phoenix_source", "true")]);
+        query.in_network_only = true;
+        assert!(!filter.enable(&query));
+    }
+
+    #[test]
+    fn enable_on_topic_request_when_other_sources_off() {
+        let filter = OONNsfwSimclustersFilter;
+        let mut query = query_with_flags(&[
+            ("rust_home_mixer_enable_simclusters_source", "false"),
+            ("rust_home_mixer_enable_phoenix_source", "false"),
+            ("rust_home_mixer_enable_phoenix_moe_source", "false"),
+            ("rust_home_mixer_enable_tweet_mixer_source", "false"),
+        ]);
+        query.topic_ids = vec![42];
+        assert!(filter.enable(&query));
+    }
+}