Reddit mentions of Fluval Telescopic Shrimp Net

Depends on what shrimp you want to keep, some of them require specific setup, like soft water Caridina (crystal shrimp and bees) and hard water Caridina (Sulawesi shrimp). "Base" will be very different for each of them. The rest of questions can be answered only after you decide on what kind of shrimp to keep.

Here are some of their photos and requirements. More on ShrimpFever website, or of any other supplier.

Next, make sure that you water is suitable for chosen kind of shrimp. Test or do online search for name of your city and water analysis. Or maybe you are already prepared to make optimal for them artificial RO based water.

Minimal tank setup: tank (not kit), filter (sponge is good), heater only if your room is cold in the winter, thermometer, light for plants, plants, a lot of hiding places for molted shrimp and babies (could be clumps of plants, wood, shrimp shelters). Substrate is species specific.

Sponge filter: T-shaped is my preferred kind. It should be connected to air pump by airline tubing, with check valve and double air valve to regulate intensity of air flow. Do amazon search for each of them, you will see how they look like. If power filter (=HOB), intake protector will be necessary for small shrimp and babies, sponge or stainless steel cylinder, pantyhose should work too.

If you will need heater, preset to 78F heater could be used only for neocaridina (cherries) and ghosts, but not for cold water caridina. Adjustable heaters could not keep temperature low enough, then external temperature controller (like Inkbird) could be needed. 50W should be enough.

Plants are up to you, this is very personal. I prefer the easiest way, low light low tech plated tanks mostly moss based (Christmas moss, weeping moss, spiky moss, fontinalis, Marimo moss ball, round pellia (actually liverwort, subwassertag or susswassertang), mini pellia. Do image search for moss tank to see moss trees, walls, hills, logs. Rootless plants do not require substrate at all.

Light is kind of plants specific, there are low light setups, fast and easy, and high light setups with fertilization schedule and CO2 dosing. Planted Tank subreddit can say what light fixture would be good for your tank and plants, if your price range. I'm using Nicrew and for other tanks, desktop lamps with daylight CFL. You will need tank cover (lid) for this kind of lights and to reduce evaporation. $5 timer is good enough, but you can ask for a better solution at Planted Tank.

Reliable online stores for livestock: you should name the country. ShrimpFever should be of no help if you are not in Canada.

Food sources for shrimp: depends on the kind of shrimp.

• Dwarf shrimp (cherry, crystals) will graze on the biofilm on the driftwood, glass, sponge filter, plants, with additional feeding by blanched or weighed raw vegetables (zucchini, cucumber, baby carrots, broccoli and so on, preferably low in sugar and holding shape well), leaf litter (do search for this and shrimp), and commercial food (you can see examples on ShrimpFever and find the same in your country). Mineral supplement helps with molting and color. Using feeding dish (like small Petri dish) helps to control pollution, this is even better. More about feeding them is in Shrimp Tank search.
  
  
• Ghost shrimp: anything you give them, especially live black worms, or frozen worms, will be appreciated. Variety and what doesn't pollute tank much.
  
  
• Amano and fan shrimp, no experience.
  
  Maintenance tools: if you will have substrate, gravel cleaner, sized to your tank, bucket, glass scraper.
  
  Tests: API GH/KH test kit; ammonia, nitrite, nitrate for cycling tank; pH just in case, TDS meter is helpful.
  
  Good to have: a piece of clear acrylic tubing for picking up uneaten food, this shrimp net. Scissors are up to you, I'm pulling apart my mosses by hands.

Patience and a very small net.