The detailed surface carving and fluid composition of this bottle assigns it to a group of late eighteenth-century Palace bottles, most on colorless glass and in red or blue overlay. See Moss, Graham and Tsang, A Treasury of Chinese Snuff Bottles, Vol. 5, Glass, no. 930, for an example in blue overlay.
Apart from various specific means for different fish, they are generally considered a symbol of fertility, since they lay many eggs. For the carp motif, see the note to lot 284.