混
=
昆
+
氵
:
Helga Horse (hu) often visits entomology man (昆) in the encampment's bathroom ((e)n4), where he spends his time with (混) his ants which he keeps in a water bottle (氵).
浊
=
氵
+
虫
:
Julian Giant Squid (zhu) is drinking from a bottle of water (氵) in the observatory's kitchen (o2), but he finds that the water is very muddy (浊) because there are so many mosquitoes (虫) in the bottle.