Legend:
sc- single crochet
ınc- ınc
dec-dec
ch- air loop
dc – double crochet
sl-st- connecting column
(…) x6 – repeat the action in
brackets 6 times.

Body:
1) 6sc in amigurumi ring (6)
2) (ınc) x6 (12)
3) (sc, ınc) x6 (18)
4) (2sc, ınc) x6 (24)
5) (3sc, ınc) x6 (30)
6) (4sc, ınc) x6 (36)
7) (5sc, ınc) x6 (42)
8) (6sc, ınc) x6 (48)
9-16) 48sc (8 rows)
17) (6sc, dec) x6 (42)
18) behind the back wall (5sc, dec) x6 (36)
19) (4sc, dec) x6 (30)
20) (3sc, dec) x6 (24)
21) (2sc, dec) x6 (18)
22) (sc, dec) x6 (12)
23) (dec) x6 (6)

Antenna (3pcs):
20vp, 3scv each loop.

Ryushki:
In the 18th row, where we knitted for the back wall, we begin
ınc knit behind the front wall 36 sc.
Then ınc knit another row 36sc.
Inc knit ryuschki: VP, in the same base ınc knit 3 dc,
ınc omit one loop and ınc knit sc. Inc let one loop
ınc knit 7 dc in one loop. Inc skip the loop, ınc knit
sc, again ınc omit one loop and ınc knit 7 dc and so on
end of row, except for the last ruffle. Since at the beginning
only a half of the ruffle was knitted ınc, so in the end, after
after ınc knit sc, you need ınc knit 3 dc to the base where
already have 3 dc and finish ss.
It remains to arrange the eyes and mouth.
Jellyfish is ready!