New to LEDs

So I got bored on eBay and bought a small tent it has 2 rooms in it I'll prob only use the 1 side it's 2x2 and I'm going to run 2 Mars hydro 300 I bought on eBay also there the old ones . Now that I got them I don't no what the best way to use them . As in for a sea of green or just grow a few at a time . Any input would be nice . And I'm growing from seed no clones ..... Yet

If you want to do sog you need clone stock or many seeds you know are fem.

You'll in all likely hood only be able to do 4 mature plants under those lights as they aren't meant to do much of a "Sea of Green"... they are low powered basic LED lights with a small footprint.

To maximize your yield.. get as high of a yielding strain as possible and some decent sized containers.. and allow at least a month Veg from the time you see the second set of leaves develop from your seedlings.. If you don't start with FEM seeds..plant REGs in smaller pots and in larger numbers, like 8 plants in one gallon pots.. I always do REGS myself... start more seeds than you plan on running and just cull the males after they start to show sex.. usually about 6 weeks after germination you can tell if its male or female. and then repot to a larger container.. you want to end up with 4 Good Size Female Plants.. I would plan on doing 2 mature plants each under each of those fixtures and plan on using 3 gallon containers.. I myself like the 3 gallon smart pots.. 5 gallon would be better but those lights aren't going to give you a very big footprint. It'd be better to utilize the light the way it was intended than to try to raise the lights and cram too many plants underneath it.

Some good yielding strains from seed that I really like.. TGA's Agent Orange or Timewreck.. both are fantastic yielding strains and have excellent bag appeal. Time wreck is much more potent than the Agent Orange.. both are really easy to grow.. not picky with nutes and would be excellent choices for someone who wants to get a good crop with relatively low experience.

my idea was doing a sea of green from seed because I have a lot of randoms and while doing the sea of green I was going to start my seeds i only have a few so I was going to veg a few so I can clone and make a mother off them right now I have 3 I'm leaning torwds and I have 3 seeds of each I have 3 sour d 3 northern lights and 3 northern lights /ak and I have a few og what do u think would be the best to try out first and after I have my mothers I only want to do the 4 plants I just want to have something going beforehand

I am not sure what to tell you as I can only tell you that those lights are only going to support a couple of plants each under each one. I would suggest just trying to pick and choose whichever strains meet your needs based on whatever criteria you are looking for I suppose.

I don't grow Northern Lights, not that most Northern Lights offered by any of these Seed manufacturers is real deal representation of the original Northern Lights anyway.. or Sour D, same answer btw.. so I can't be of assistance there with giving you advice on that.

If you really want to find a good mother plant.. Usually the way to go about it is pick one strain, run as many plants as you can of that one particular strain, select the best plant, clone her if satisfied with that particular pheno or run it again.. it sometimes can take a few seeds.. sometimes you might have to run a whole pack of ten.. but a pheno hunt can prove worthwhile to find a good mom if you want to run something repeatedly again and again. I have mother plants I have kept for years that are proven winners.. and it can take a lot of work and effort to find a good one sometimes.. or you might get lucky and pop one seed and hit the genetic lottery. With seeds you just never know.

You could sacrifice your yield and get a bunch of smaller pots.. one gallon grow bags, cram as many as you can under the lights and run all the seeds you can.. and do a little pheno hunt. You'll water the plants more often for sure. It'll be a little more of a pain in the ass. I'm kinda doing something like that now with 2 gallon grow bags and these Cheshire Kush seed plants from Alphakronik.. 8 females too out of a ten pack.. didn't expect that.. but I know in the end chances are, I'll have that dank ass heavy las vegas purple kush leaning or heavy Gobbstopper leaning pheno that I want. I'd probably be happy with either. Next run I can run whichever keeper I select real proper and get rid of the other less desireable phenos that present themself from the 7other female plants. Running seed plants can be fun.. it's the mystery of it all that I like about it.. but it's always more work.

Dont do what every led guru did when they got started with LED's and buy them mars and other no name cheap boards, that would probably burn your house down

Edit.(Too late, you did it /without me seeing the words mars first)
Take the glass out of them panels for more light/height.

I did a diy on it when I made your mistake; https://www.rollitup.org/t/diy-marshydro-300w-removal-of-glass.879874/

Ita tempting but that extra $200 investment is worth it.

-goodluck dude