Sgeo committed f2394f4

Fix Fish

A fish surrounded on all sides by fish should not turn into air. This _might_ be better than reversing the instructions, but not sure.

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  is Steamy;
 state Fish "f"
-  to Air when not 1 Water,
+  to Air when not 1 Water and not 8 Fish,
   to Water when 4 Fish or 7 Water;
 state OnePebble "."