So crazy story, I got a YWG who was a baby, around half an inch and no thicker than a #2 pencil and also a large tiger pistol shrimp from two different LFS.
The YWG so small that it actually jump into the overflow and hid under the tank bottom the first day I got it. Spent 2 hours taking apart my AIO tank equipments and rescuing it. Before jumping into the overflow chamber, it was swimming randomly against the power head and laying on the overflow. I thought for sure he wasn’t going to make it.
As soon as I got it out, I threw him into the same hole my Tiger Pistol Shrimp was digging in. Ever since that he stayed by the sand bed and rarely swims in the water column.
Bad news came and my Tiger Pistol Shrimp actually died a few days later. My suspicion is that my tank was too new and my sand bed was too clean. He was a larger shrimp and was in an established tank hiding for months.
As of now my YWG has grown a bit and doing fine, looking to get a new Tiger Pistol Shrimp for him next week and restart the pairing. Hopefully with a smaller shrimp this time and a more established tank setup.
Hopes this helps for anyone who’s new into getting a shrimp goby pair or just picked up one of those critters.