I am using miracle grow moisture control soil that has plant food and slow release fertilizer in it to feed them for up to 3 months and miracle grow perlite in my pots. My plants were looking good til about a few days ago when some started looking not so good. Does the soil have too much fertilizer in it for seedlings about 2 weeks old or should I just go out and get another soil so I don't lose my plants? My seedlings are about 3-4 in tall.

Yea it can be too much. I used the miracle grow seed starter and that was ok. They really don't need any nutes for about 3 weeks so it might be a bit much for them right now. They will probably get through it but its hard to really tell without pics.

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im using mg moisture control it works ok. you may get some nute burn at first but they should bounce right back. the bitch is using diff nutes with it

Miracle gro soil tends to be a very rushed and chemical soil, weed grows fast compared to other plants really so all the extra "nutes" in most miracle grow soil is usually too much starting off, also people tend to complain tha miracle grow is quite acidic with ph's around 8.0 where in soil you want about 6.5

also the time release fert may give u probs when feeding your plants later on, because all ur measurements are going to be skewed because you have to account for the already present ferts.

If you are planning to repot, i say get something organic even miracle gro organic will do u good, but fox farm ocean forst is the best

As for right now wait 2 more days if things begin to look worse all you can do is flush (use more water to drive out salts and extra ferts), u can't remove the plant from the soil because that will damage or even kill your root system

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I use mg potting soil. And never had problems. I wait a month before i repot. And liquid seaweed w/ iron works well with it

So I should just flush them a lot with water for the next few days to drive all the extra nutrients out and then just water them a little more after that so keep it from building up again?

I used MGMC, and it fucked me royally. Just flushing may not do it. A lot of people do well with it, others don't do so well. This was my miserable experience, I couldn't fix it. Hope you have better luck.

Magnesium Deficiency?

You could probably start your seedlings without the fertilizer and once they start goin good throw in the MG fertilizer... As to soil pH, 8 is not acidic, that's slightly basic, but you're right on that you want 6.5-7 (slightly acidic, to neutral).

The problem with flushing soil with release ferts in it is this, watering releases the nutrients, so it would just give them more feeding with more water, to slow down feeding id think less watering would be better, at least until they can handle these nutrients, of course you dont want them to not get enough water either, catch 22.

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Dont flush i think they will have a better chance if you water less often. I have used mg when i had to and it works fine for me, but you can water too much and the more you water the more nutes that come out

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