What in the world is this fish?

Segrest Farms' latest fish arrival is something of a mystery. This fish appears to be some extreme aberrant and malformed variant of a moorish idol, almost as if it's a hybrid between two entirely different genera.

Research finds that random water movement cost fish a lot of energy

A new study has found that reef fish expend a lot of energy navigating through big waves especially when the water movement is chaotic. Constantly changing speeds is a huge energy burn, at least for fish that propel themselves with their pectoral fins (and that is most of the reef fish we keep). Does this finding change our approach to water circulation within aquariums? Are we tiring out our fish?

This is why we don’t keep parrotfish in our reef tanks

Aside from the fact that most get way too big for almost every private aquarium, this video shows how brutally effective parrotfish are at demolishing stony coral and rock. Just listen to the underwater crunching sounds and you'll understand how their chisel-strong teeth help them serve the important ecological role of reef bioeroders (in this case, turning rock into sand).

It’s peanut butter jelly time!

The staff at The Dallas Zoo and Children’s Aquarium are nuts! On a whim, they decided to see if they could use peanut butter as a protein diet substitute for traditional ocean-based feeds for their Aurelia moon jellyfish. The surprising answer: An unequivocal YES!