I’ve fallen into the trap of searching for the Holy Grail of Feed the Fish: that is 15/15 shots. I’ve done so many “takes” that the course has gone darker (from tyre rubber) where the robot makes a right-angle turn to line up on the aquarium!
This is my latest attempt at designing a more reliable catapult arm which I will call YACA5:

If it works, I’ll explain it in another blog post.
Wish me luck!