
It is right on Nordhoff St, a few blocks away from the 405 fwy. The next day, I went there with my friend Eunice after our workout at Hanson Dam since I was in the area, her Jade needed dog food, and the pet store happened to be in the same shopping center.
Long story short, they have all the supplies needed to make sushi! May not have to drive all the way to LA to get all of my supplies now!

Sushi Vinegar. Essential for the Sushi (Vinegar Rice).

Fish. Although I probably wouldn't get my fish here, but nevertheless, it is made available.
Rice and seaweed are here as well, of course.
So if you are looking for a good place for all of your sushi needs, Seafood City is a go-to place. Prices are low here, which is a plus! I also would like to say 99 Ranch is another place in Reseda that has been recommended to me as well. I will definitely be stocking up on sushi supplies as soon as I come back from my Ecuador travels!