Looks fine.. The very first leaves(cotyledon) Alway die off, they are there to produce food for the plant so she can get off to a good start.. They always die off, you plant looks fine... If the new green foliage looks fine, I wouldn't worry.. Water thoroughly, then le it dry out.. You want it like a consistency of a rung out sponge.. It seems like your growing them fine, get on growing my friend! Joe

I like that little glass plate! Would you believe I have one JUST LIKE IT! I don't know where it is right now or I'd grab a picture, LOL! Anyway. Not to go against the common wisdom here but I swear those little seedlings look UNDER watered to me. If you wait 'til the plants droop to water, they are already stressed. The point is to avoid stressing the plant. In future I would recommend against using that mix for seed starting - I believe I read it was compost, coir and sand. For one thing, never in my life have I ever bought a bag labeled "compost" that actually was. So whatever was in that bag - it almost certainly was NOT anything one would normally think of as compost. My seedling mix for decades was peat and medium grade vermiculite (I used coarse for potting, but medium for seeding). I can actually get medium grade vermiculite still, but I used to sift the fines out of coarse for my seeding needs and since I haven't been able to get the coarse any more, I've virtually stopped using any vermiculite whatsoever, just because I have no use other than seeding for the smaller grades of vermiculite. I may reconsider that. But here are some of the seeding mixes I typically use: 1:1 peat and vermiculite (medium is ok for seeding, but not potting) 1:1 peat and good quality bagged SOIL such as Miracle Grow (again, of limited use as anything other than a seeding mix or single season container mix) 1:1 peat and very fine pine fines - I'm concerned this may end up too moisture retentive but we'll see. 1:1 peat and Scott's Turf builder - this is very finely graded pine bark with a teensy bit of fertilizer - 1-1-1. I think this could be a good replacement for my old mix of peat-vermiculite. I don't know if you can get anything like it in Australia. I've also successfully seeded in any halfway decent bagged soilless potting mix. I do try to avoid coir because results with coir tend to be so variable. Also, for all the bad rap peat gets for being "hydrophobic", the few times I've worked with coir I've found it to be next to impossible to rewet if it dries out. If you went 4 days without watering that could be an issue. What I would do at this point in your position is get some seeding paks or small pots and "repot" those seedlings. Try just a couple at first and see how they do, but they look stressed enough to me that I don't see a lot to be gained by waiting any longer than you have to. BTW - purpling of LEAVES is not anything normal for pepper seedlings. I have never seen that. Maybe I read that wrong. What I HAVE seen is that the stems of seedlings will sometimes darken to a kind of dark burgundy or purplish colors. I tend to see that on seedlings that have gotten leggy. It fades after awhile. I have some basil seedlings right now where just ONE seedling got leggy because it sprouted before all the others, I had them in a south-facing...

Bean soil or not, your leaves are turning yellow. At this stage, it's likely either from over watering or nitrogen deficiency. You'll want to let the top layer of soil dry out a bit before watering again, but I have no way of knowing how much you actually water your seedlings without you telling. Alternatively, your "bean soil" might still be nitrogen deficient even if it received some fixation from the beans, especially if your cups are small relative to the current size of the tomatoes. Why not feed it with quarter- or half-strength fertilizer, or pot up into a bigger container? I always go overkill with my seedlings, using one six-inch pot per seedling. That way, I don't have to worry about early nutrient deficiencies. Not cost effective if you're growing dozens or hundreds of plants, but it makes sense for my ten or so plants.

hi, Nope it's perfectly normal you probally have plenty of nutrients in the mix. I personaly wouldn't add nutrients when you pot up wait 2 weeks than hit them with diluted liquid kelp. others will disagree I'm sure and it is probally better to follow their advice. tomatoes are not heavy feeders they need a wide spectrum of different nutrients but not in large amounts. broccoli is a heavy feeder but not tomatoes. you might try a diluted calcium boost if you need to feed them something now. you do not need the calcium really, and if you are planting them directly in to the ground not raised beds (when you plant out) unless you have sandy soil you probally have enough callcium anyway. it won't hurt them though so if you feel need to feed, an egg shell soaked in 1 gallon of water will be fine and provide a little extra calcium without burning or harming your seedlings in anyway. just a thought...