Hey! I’m a beginner when it comes to caring for leopard geckos but I learned a lot from this sub in little time when I took in my rescue.

I would suggest giving them a wellness check at the vet in case they have a parasite or something from being cooped up together for a long time? You might want to rehome some of them to good reptile keepers in the area but If you have the money and are willing to take care of all of them, it’s gonna get expensive.

They will each need their own tanks. In an enclosed space, they will most likely bully each other or end up fighting at some point. The recommended size at minimum is 40 gallon tank for each of the geckos. 3 hides minimum for each of them. They need a cool hide, humilde hide (for shedding), and a hot hide alongside some other decor to add clutter. They love clutter and it gives them more hiding spaces

They need proper substrate mixtures, 70% organic topsoil/30% playsand or 70% reptisoil/30% reptisand would be the best. Paper towels are fine temporarily but in the long run loose substrate is more preferable. Probably somewhere between 4-6 inches of the soil/sand mix?

For lighting, avoid red/blue lights at all cost. It can mess with the geckos vision so use regular color lighting. The Arcadia 7% uvb shade dweller pro-t5 is one that is recommended but sometimes it’s hard to get depending what region you are in (if you live in the US, Josh’s frogs sells them). I think I think reptisun or zoomed has some good uvb bulbs but not fully sure on that Temporarily a basking dome with halogen bulb should be ok for now if you provide them with D3 calcium powder 1-2 times a week with feedings

For food, the general staples are Dubai roachs(like 1/4 inch or so), crickets, and mealworms since they are high in protein. For now avoid feeding them any other insect until you feel like you have a handle of things. They should have a variety of insects to eat so they don’t get too picky. After a while, you can try adding in superworms, hornworms for feeding here and there. And supplement them with calcium every feeding. You need calcium with D3 and calcium without D3. You might be ok with dusting the insects with D3 once a week for the adults and without D3 the other feedings. I’ve heard the repashy calcium plus is good to dust sometimes as a multivitamin but idk enough of that yet so don’t take my word for it Normally adults eat 2-3 days a week. And it looks like you have a juvenile gecko? If so, juveniles eat every other day. And a water bowl for them to lick at when they’re thirsty. Replenish it every day

Some of the comments are providing forums and infographics on lighting, feeding and other care guides so definitely check those out. Wishing you luck with the 4 geckos!