水槽 and 浴槽: a fish tank and a bathtub
Compare 水槽 containing fish with 浴槽 filled with warm water or wide enough to stretch out one's legs. Identify the container names, the objects inside them, and the sequence of moving fish or filling a tub.
水槽: the tank containing fish
水槽, read すいそう, names a tank or aquarium. 「水槽の水を替える前に、魚を別の容器へ移した。」 says the fish were moved to another container before changing the tank water. The prior completed action is moving the fish.
「子どもたちは大きな水槽の中を泳ぐ魚を眺めていた。」 says the children watched fish swimming in the large aquarium. 水槽 names the container, while the fish inside it are what the children watched.
浴槽: a filled bathtub and its width
浴槽, read よくそう, means bathtub. 「掃除した浴槽に温かい湯をためました。」 says the cleaned bathtub was filled with warm water. 掃除した describes the tub, and the main action is filling it.
「この浴槽は足を伸ばせるほど広いです。」 says this tub is wide enough to stretch out your legs. 足を伸ばせるほど expresses the degree of width, rather than reporting completed bathing.
Name the container and identify its contents
The 水槽 examples concern tank water and fish inside the tank. The 浴槽 examples concern water put into a tub and a tub's width. Connect the container names with tank or aquarium and bathtub respectively.
Moving the fish does not itself report completed water replacement. Filling the bathtub does not report completed bathing. Read the sequence without turning a large aquarium or wide tub into a universal capacity measurement.
Which containers do 水槽 with swimming fish and 浴槽 filled with warm water name?
Show the answer and why
水槽 names the fish tank or aquarium in the example. 浴槽 names the bathtub filled with warm water. The fish transfer and tub filling should be distinguished from completed water replacement and completed bathing.