diff --git a/capsulflask/metrics.py b/capsulflask/metrics.py
index 3737a10..828472d 100644
--- a/capsulflask/metrics.py
+++ b/capsulflask/metrics.py
@@ -81,6 +81,7 @@ def get_plot_bytes(metric, capsulid, duration, size):
   if interval_seconds < 30:
     interval_seconds = 30
 
+  # Prometheus queries to pull metrics for VMs
   metric_queries = dict(
     cpu=f"irate(libvirtd_domain_info_cpu_time_seconds_total{{domain='{capsulid}'}}[30s])",
     memory=f"libvirtd_domain_info_memory_usage_bytes{{domain='{capsulid}'}}",
@@ -89,12 +90,14 @@ def get_plot_bytes(metric, capsulid, duration, size):
     disk=f"rate(libvirtd_domain_block_stats_read_bytes_total{{domain='{capsulid}'}}[{interval_seconds}s])%2Brate(libvirtd_domain_block_stats_write_bytes_total{{domain='{capsulid}'}}[{interval_seconds}s])",
   )
 
+  # These represent the top of the graph for graphs that are designed to be viewed at a glance.
+  # they are also used to colorize the graph at any size.
   scales = dict(
     cpu=vm["vcpus"],
     memory=vm["memory_mb"]*1024*1024,
     network_in=1024*1024*2,
     network_out=1024*200,
-    disk=1024*1024*2,
+    disk=1024*1024*4,
   )
 
   if metric not in metric_queries:
@@ -110,19 +113,20 @@ def get_plot_bytes(metric, capsulid, duration, size):
   if prometheus_response.status_code >= 300:
     return (502, None)
 
-
+  if len(prometheus_response.json()["data"]["result"]) == 0:
+    return (404, None)
 
   time_series_data = list(map(
     lambda x: (datetime.fromtimestamp(x[0]), float(x[1])), 
     prometheus_response.json()["data"]["result"][0]["values"]
   ))
 
-  plot_bytes = draw_plot_bytes(time_series_data, scale=scales[metric], size_x=sizes[size][0], size_y=sizes[size][1])
+  plot_bytes = draw_plot_png_bytes(time_series_data, scale=scales[metric], size_x=sizes[size][0], size_y=sizes[size][1])
 
   return (200, plot_bytes)
 
 
-def draw_plot_bytes(data, scale, size_x=3, size_y=1):
+def draw_plot_png_bytes(data, scale, size_x=3, size_y=1):
 
   pyplot.style.use("seaborn-dark")
   fig, my_plot = pyplot.subplots(figsize=(size_x, size_y)) 
@@ -156,7 +160,7 @@ def draw_plot_bytes(data, scale, size_x=3, size_y=1):
   hours = minutes/float(60)
   days = hours/float(24)
 
-  day_locator = mdates.WeekdayLocator()
+  week_locator = mdates.WeekdayLocator()
   minute_locator = mdates.MinuteLocator()
   ten_minute_locator = mdates.MinuteLocator(interval=10)
   hour_locator = mdates.HourLocator(interval=6)
@@ -173,7 +177,7 @@ def draw_plot_bytes(data, scale, size_x=3, size_y=1):
     my_plot.xaxis.set_major_locator(hour_locator)
     my_plot.xaxis.set_major_formatter(hour_minute_formatter)
   else:
-    my_plot.xaxis.set_major_locator(day_locator)
+    my_plot.xaxis.set_major_locator(week_locator)
     my_plot.xaxis.set_major_formatter(day_formatter)
 
   max_value = reduce(lambda a, b: a if a > b else b, y, scale)