Fish Tank Organizer

I wanted something to create something where I could easily grab fish food, stress coat bottle, etc. This is the fish tank stand I am using:

https://www.petco.com/shop/en/petcostore/product/imagitarium-brooklyn-metal-tank-stand---for-10-gallon-aquariums-2572811

It has to "latch" on one side due to placement of the stand's bars. The width, using Bambu studios ruler, is roughly 2.84" inside, roughly 3" end to end. The length is roughly 8" inside, outside about 8.4". The little hook thing has a depth of 0.87"