Any reason to think it isn't the mycelium? A white "gel like substance" with "fuzzy stuff in the middle" certainly sounds pretty typical of mycelium. Did you innoculate these recently or is this an older jar?
The floating on the surface of the
water is a bit weird but doesn't tell me anything per se. Could easily be the mycelium you are trying to grow.
Another compounding factor here -- LC contaminants, in general, don't visibly look different than healthy mycelium. In other words, generally with LCs its difficult to tell if you have a success or a contamination just by looking at it. Everything pretty much looks like a fuzzy white cloud.
My recommendation is to let it sit and see what happens. Definitely DONT open the jar and try to get it out-- unless you have a HEPA flow hood and really good sterile technique. That's a surefire way to contaminate it.
One thing you should do, either right now, or after letting it sit for a few days to get more growth, is to suck that LC up into a syringe and inject it into a test jar of spawn. Homemade LCs can't be verified as clean until the culture is grown out on agar or grain, so its generally recommended to do a single test jar in this manner before doing a massive amount of innoculation. In any case, testing your LC on some grain spawn will tell you a lot more about whats going on.
Make sure not to contaminate the jar when you use the LC-- you have an injection port on that lid, right? If you jave a hole-with-tape instead of an injection port than I would recommend building a still air box for doing that.