unknown bug

Hello, I just got Ich (verified,) and have moved my fish (6 white skirt tetras) from their 20L to a 10g hospital tank. This will be their home until the Ich is gone from the main (now shrimp only) tank. I'm beginning to notice these on the tank glass. Any idea as to what they may be? From what...

My tropical tank was setup about 2 months ago. Nothing has been added in last 4 weeks. It is planted tank with 3 cherry shrimps and some babies (YAY!!). 3 bumble bee snails. 4 endlers and 2 mollies. Today spotted this white insect. What is it? is it dangerous to my tank family?