Warframe’s open-world on Deimos, the Cambion Drift, has a whole host of new fish for you to track down. One of the most sought after is the Vitreospina. This fish is important as you can bring it to Daughter in the Necralisk, choose the Cut Bait option, then pick these fish to hopefully get some Spinal Core Sections. This important resource is needed to rank up with the Entrati Syndicate.
One very important thing you will need to do before you set out to go fishing is getting the Spari Spear from Daughter. This will cost you 500 Standing. You can easily earn this standing by running a bounty for Mother, then bringing the Mother Tokens to Grandmother and handing them in for standing. Once you have the Spari Spear, it is time to go fishing for Vitreospina.
You will also need to get some Fass and Vome Residue to act as bait for the fish, as they do not spawn without bait being present. You can get this bait by searching around on the surface of the Cambion Drift. You will see large glowing areas of land covered in chunks of wyrm flesh. Destroy the chunks and you can then pick up the Residue.
When you have the bait, make your way to the cave marked on the map above. Vitreospina is a cave fish, and will only appear in pools of water in the cave systems below the surface. The Vome/Fass cycle doesn’t seem to impact their spawning at all, but you will need to use the red/orange Fass bait to get the Vitreospina to spawn.
After that, it is just a waiting game. Make sure you catch any fish that shows up to generate as many spawns as possible, but it shouldn’t be too long before the Vitreospina appears.