diff --git a/src/main.rs b/src/main.rs
index c9b27a3..0381b56 100644
--- a/src/main.rs
+++ b/src/main.rs
@@ -9,7 +9,7 @@ fn main() {
     let (width, height) = (1024, 1024);
     let n_particles = 1 << 22;
     let diffusivity = 1;
-    let n_populations = 1;
+    let n_populations = 3;
 
     let mut model = model::Model::new(width, height, n_particles, n_populations, diffusivity);
     model.print_configurations();
@@ -32,8 +32,6 @@ fn main() {
             "libx264",
             "-preset",
             "fast",
-            "-crf",
-            "23",
             "output.mp4",
         ])
         .stdin(std::process::Stdio::piped())