ive just reset one of my shrimp tank, this is what i do
Neocaridina davidi only
Give tank and all equipment a good clean
Simple aquascape
Fill with water, get up to required temp
Set up filter with media/ sponge that you have previously had in another tank(longer the better)
Add substrate, mix of 50% fresh sand and 50% sand from an established tank, pest free! I Also add some crushed coral underneath
This also tones down the brightness of brand new sand
Squeeze in some goodness from other filter sponges, the gunk/mulm will be full of bacteria, and micro fauna
Add some some wood, botanicals etc from an established tank
I run lighting 24/7 for a couple of weeks, adding small amounts of bacter AE on a daily basis, dont overdose!!
After a 2/3 weeks set lighting to 12 hours and add a couple of snails i prefer MTS, dont add nerites as they will soon polish of all that lovely biofilm
Start your water change routine, 10/15% i dont do big w/c s on my shrimp tanks
And wait, longer the better
Then add shrimp, which will have lots of biofilm, algae, microfauna etc to graize on
This is how i do it, it works for me, in a hard water area with a TDS of around 200, its not a planted tank, i do add plants, but for the shrimp to hide in and graize on
If you have soft or neutral water, you will need to raise your TDS to appropriate levels for neos, using salty shrimp mineral kh/gh and use more crushed coral to help buffer the tank
Hope this helps