You take 15, damage from the Ramfish charging into you.
The touch attack is definitly a success, but yeah that grapple was already going to be a tricky one. Grappling in general is really hard in 3.5 with oppurtunity attacks you need to miss, and attacks you need to hit nd checks you need to beaten them in. It would have been cool to see but yeah, it was a difficult endevour. I'm guessing Drakkensteeds have some attack to get around the first issue, but it's still raarely easy.
(1d20+19)[38]
And that's a no.