Update: One Fish, Two Fish

First Tip
Working in rnds with sts on dpn, cont as foll:
Next Rnd (Inc/Dec): K2, left slant inc, knit to 3 sts before next marker, ssk, k1, move marker, k1, k2tog, knit to 2 sts before end-of-rnd marker, right slant inc, k2, move marker to current row.
Next Rnd (Dec): Knit to 3 sts before 2nd (inside fin) marker, ssk, k1, move marker, k1, k2tog, knit to end.
Rep last 2 rnds to 12 (8) sts on ndls.
Next Rnd (Dec): *K1 (0), ssk, k2tog, k1 (0), rep from * once. [8 (4) sts]
Pull yarn through all sts and fasten off.
Second Tip
Slip first 9 (12) sts on holder onto new st holder, join MC, k20 (28) sts, pm for end-of rnd, leave rem 9 (12) sts on holder.
Next Rnd (Inc/Dec): K1, ssk, knit to 2 sts before outside fin marker, right slant inc, k2, move marker, k2, left slant inc, knit to 3 sts before next (end-of-rnd) marker, k2tog, k1, move marker. [20 (28) sts]
Next Rnd (Dec): K1, ssk, knit to outside fin marker, move marker, knit to 3 sts before end-of-rnd marker, k1, k2tog, move marker. [18 (26) sts]
Rep last 2 rnds to 12 (8) sts on ndls.