The rising fish is in principle the same as that in Gb5-13, it shows the new year:

Gb5-6	Gb5-7	Gb5-8	Gb5-9	Gb5-10	Gb5-11
Gb5-12	Gb5-13	Gb5-14	Gb5-15	Gb5-16	Gb5-17
Gb5-18 (372)	Gb5-19	Gb5-20	Gb5-21	Gb5-22	Gb5-23 (377)

There are, though, two added signs. Behind the fish in Gb5-18 we can imagine an inverted moon 'boat', presumably indicating 372 days is a kind of moon year. Then there is a mark also inside the fish (top right). It is the same kind of mark we have in Gb5-14--16 and in Gb5-20. Only one more instance in G of this type of sign can be found, viz. in Gb7-15 - where the body of the fish has been turned around:

Gb7-12	Gb7-13	Gb7-14	Gb7-15 (426)	Gb7-16	Gb7-17 (428)

Tao in Gb7-17 is of some interest, because twice 244 days (the spring square 4 * 61) = 488 days (which ought to be a full year), and 428 + 60 = 488.

The tao 'canoe' in Gb7-17 has signs indicating moon: A slight depression at center right, the top point is bent slightly to the left, and then there are the numbers of course, e.g. 428. We can also recognize the pair of mago from Monday:

Pb10-32	Pb10-33	Pb10-34	Pb10-35	Pb10-36	Pb10-37	Pb10-38