This did not mean that the blue trained fish still preferred the yellow target.

This fish prefers a current as well as clean water.

This fish prefers the top and middle levels of the water.

The fish prefers slow water in areas that do not experience heavy flooding.

We can heat up the water in the building to whatever temperature the fish prefer.

The fish prefers clean, clear water with a current.

Further, young fish will prefer such a shady area.

This may explain why fish prefer to shoal with individuals that resemble them.

However, these fish prefer rocky, relatively deep, and quiet waters.

These fish prefer flowing water habitats of medium to large rivers.