new seedlings falling over

hello all, I just started some seedlings this past monday.
for the first few days they were all happy and growing.
yesterday they were all straight, and today when i woke up they were all folded over
i am a newbie, but would like some advice
they are Blueberry fem seeds,
temps are 70-75, and humidity is right on 55% daytime and about 60
60% Rh at night.
pix attached

I only had this problem when i over water and had my lights to far from the plants. Just build up some dirt to hold them up and move your lights closer.

[thanks, did that; going to see how they look tomorrow morning time frame

Looks like it could be over or under watering. If the soil isn't wet you should top them up, if it is then hold back on water till it dries out a little. Seedlings need a lot of moisture

i put seedlings into a bigger planter, gave water and they seem to be doing a little better
one has started to straighten up, hopefully her sisters will follow suit

Good to hear, hope it keeps getting better