Sad cucumber seedlings

I started these Japanese cucumbers about a month ago. We have been having very strange weather hot cold, hot cold, very strange and unpredictable, so it doesn't surprise me the seedlings are growing slowly, but they look very unhealthy.  What do you think, should I remove them?
With the strange weather, I could probably  start new seeds, and not be that far behind.  What do you think?

i would leave them. we are also having wacky weather and you figure the plants are established and by the time the weather gets more normal they will have a good root system. the crummy looking leaves seem like they're mostly the older ones, i might start some new ones just for fun, but i'd leave them (I am doing the exact same thing with my peas and such right now- planting new ones just in case but leaving the old and kind of stalled ones.)

Maybe too much water?

I planted some Japanese ones in the past and they never seemed to do well for me and seemed more bitter too for some reason.

I'll bet they make a comeback though too. Mine seem to start out rough sometimes also, and then look a lot better as they get bigger.

Hope they produce some tasty cucumbers soon!

Thank you. I was worried they had some disease or something. I have grown cucumber from seeds many times and never looked like this, or grew so slow. I will leave them and see.  I'm also planting more of the same and some other varieties just in case.  It's getting hot, and I swear everything grew an inch last night. It's probably not true, but it's like all the veggies were like finally now we can grow.  
Thanks

They look like they have a little fungal growth on lower leaves, probably due t0 cooler weather than they like.  Warm them up a bit by first spraying with diluted whole milk on the leaves to kill the fungus (always use tepid or barely warm water for cukes or it shocks them too much).  I had to cover mine with row cover cloth due to the cool nights.  It buffers just enough to keep them happy, also keeps that intense sun off during hot days, which they also don’t like.  Make sure they have plenty of minerals in the soil to give them everything they need, plus a little compost.  

Strange weather patterns and sun is too intense, having to pay attention and adjust EVERYTHING.  Row cover cloth suspended over lettuce in hot weather can keep it growing all summer.  Just plant at two week intervals to keep it coming on.  

I soaked some different cucumber seeds. I don't know what I was thinking. I wrapped the seeds in a damp paper towel, then set the seed pack on top so I would know what it was. So dumb the seed packets are paper,. So all the seeds are starting.  I hate to just waist them, so I stuck them where ever I had space. If even half grow, I will have cucumber and cantaloupe coming out of my ears. Who knows with the strange weather, maybe they won't produce at all. Time will tell.

I just know that someone is going to suggest you plant more seeds. Didn't read the whole thread. I'll put on the popcorn!

It grew tall and healthy. I got my first cucumber off of it the other day.

About preserving excess cantaloupe, last year I had a bit too much, and some of them weren't very sweet. I cut them ini chunks and froze them, and then later put them in the blender with peaches that were on the sour side, and it made divine sorbet. With a little sugar or stevia in.