Cherax warsamsonicus is endemic to the freshwater tributary of Warsamson River, for whom it was named after.  According to the ZooKeys paper, “the creeks from where these crayfish have been collected are shallow (20–60 cm) with a moderate flow, the water is clear, and have a pH of approximately 6.5.

The number of species of freshwater gobies is dwarfed by their saltwater counterparts.  New discovery of freshwater gobies is pretty rare, so we’re happy to report the discovery of a new freshwater goby.

Below is a video of the Pacific leaping blenny (Alticus arnoldorum) in its natural habitat.  These reef blennies can spend up to twenty minutes of water. 

An adhesive that works under water and is modeled after those created by shellfish for sticking to surfaces has been shown to be stronger than many commercial glues. At left, a live mussel uses its natural adhesive when sticking to an aluminum sheet.

Triplefin blennies are described for their three distinctly separated dorsal fins, which can be clearly seen in the photograph above. 

Groppos are anthias-like Callanthiidae fish currently native to the Indian and Pacific Ocean.  They are found deep down in the twilight zone, where many exotic and vibrantly colored reef fish are found. 

https://www.youtube.com/watch?v=9YFx72tNVmA

And here is a live video (much of it underwater and in 4K!) of Viking V’s tank that we’ve published before in case you missed it. 

From the University of Stanford:

Stanford biologists identify ancient stress response in corals

The abstract of the paper published in PeerJ sums up the findings nicely:

Zinc levels in artificial seawater are often unnaturally elevated, and thus potentially toxic to aquacultured corals.

Orphek explains their decision to add infrared LEDs, stating:

“If you think about red light, you must also recognize that our coral come from different habitats and different depths.