Sorry for the late response, I've been in the field all day today!
There are only 2 sons for Johannes Fischbach and his first wife, Liess:
1. Daniel Fischbach b. Bef. 5 Dec 1624
2. Johannes Fischbach b. Bef. 23 Nov 1631
Johannes married a second time around 1635 to Elsbeth and they had 6 children, none of them named Clara.
There are no daughters named Clara from either of the marriages. Also, Johan Fischbach is not his name, it's Johannes and so is his son's name, Johannes.
Johannes Fischbach b. 1631 married about 1650, Catharina Heimbach b. 1630, the daughter of Georg and Elisabeth Heimbach of Seelbach.
This couple had a daughter named Clara (she's the one you're referring to) b. 1651, her godmother is Clara, wife of Johannes Heimbach of Trupbach.
Johannes Heimbach of Trupbach was born in 1632 and he married ca. 1651 Clara MNU. Johannes and Clara (MNU) Heimbach are the parents of Elisabeth Heimbach b. ca. 1662, the wife of Philip Fischbach, both 1714 Immigrants.
The source for this info is:
B.C. Holtzclaw, Germanna Record No. 5: Ancestry and Descendants of the Nassau-Siegen Immigrants to Virginia 1714-1750, (Culpeper, VA, The Memorial Foundation of the Germanna Colonies in Virginia, Inc., 1964) Pgs. 156-159; 179-180.
I'll look at the profile, too, and we can get it corrected. I think it's just a matter of connecting the Clara born in 1651 to the correct parents and godparents.
Barb