I'll do that as I go.4. Do you have any specific manufacturers or companies that you would recommend for certain products on a budget reef? LIST WHAT YOU KNOW!
Obviously, the smaller the cheaper. But I would recommend a 20 Gallon for a good value to cost ratio.1. What tank would be a good budget starter tank? Size, brand?
I can't recommend a brand though because the prices differ depending on the time and place.
1) Tank - I just covered the first one, which is the tank itself. A plain tank would be cheaper than an all in one.2. What are the necessary pieces of equipment that will be needed?
2) Heater - Always necessary. here's a good place to get them https://stores.cllpetsupplies.com/heaters-chillers/
Get a thermometer too.
3) Hang on back filter - This will add surface agitation (for oxygenation) and remove pigments and other gunk.
4) Biofilter - this can either be live rock/substrate or a sponge filter.
This is the cheapest and possibly the best rock, for a 20 gallon I would get 10 pounds - https://www.bulkreefsupply.com/brs-reef-saver-dry-aquarium-live-rock.html
Here's some live sand
An air pump https://stores.cllpetsupplies.com/aquarium-air-pump-adjustable-30-65gph-with-accessories/
And a sponge filter https://www.bulkreefsupply.com/sponge-filter-hydra.html
5) Light - You can get by with a PAR38 but you might want to really invest here. The cheaper lights come with their drawbacks (more algae, less growth, undesirable ambience).
6) Lid - So the fish don't jump out (it can be doen without sometimes). DIY one yourself with some old window screen or get netting here https://www.bulkreefsupply.com/1-8-clear-netting.html. Build the frame using something or the other (be creative).
Additionally, you also need some water changing equipment.
1) Bucket - Get two of them, one for making water in, and one for emptying tank water into https://www.homedepot.com/p/The-Home-Depot-5-Gal-Homer-Bucket-05GLHD2/100087613
2) Heater - get a cheap one https://stores.cllpetsupplies.com/heaters-chillers/
3) Pump - to mix the water https://stores.cllpetsupplies.com/wavemakers/
4) Refractometer - Yeah, you could do with a hydrometer, but I wouldn't (you could though).
5) Siphon - https://www.bulkreefsupply.com/search?w=siphon
1) Salt -3. What are the necessary dry goods, consumables that will be needed?
2) Water - either make your own by declorinating it or keep buying (not budget friendly)
3) Food - Pellet and/or flake.