You've seen Balloons set — Balloon Fish

You've seen Balloons set-Haven't You? 1
So stately they ascend-
It is as Swans-discarded You,
For Duties Diamond-

Their Liquid Feet go softly out 5
Upon a Sea of Blonde-
They spurn the Air, as t'were too mean
For Creatures so renowned-

Their Ribbons just beyond the eye-9
They struggle-some-for Breath-
And yet the Crowd applaud, below-
They would not encore-Death-

The Gilded Creature strains-and spins-13
Trips frantic in a Tree-
Tears open her imperial Veins-
And tumbles in the Sea-

The Crowd-retire with an Oath-17
The Dust in Streets-go down-
And Clerks in Counting Rooms
Observe-"'Twas only a Balloon"-
(F.730/J.700)
[1] Balloons:: balloon fish, is an aquarium.
[9] Ribbons:: decorations inside the water tank, seaweed.
[10] struggle:: the ribbon trapped the fish.
[14] Tree:: some sea plant like a tree, coral.
[17] Crowd:: audience of the aquarium.
[19] Clerks:: officers of the aquarium.