2yr old sealed ecosphere

Another year has come and gone. At the 1 year mark I had an issue with hair algae, so I moved the jar in and out of the sun to get rid of it. It worked for a time, but it put a real hurt on some of the other life. I originally thought all of the snails had died but luckily they’ve managed to bounce back. The tubifex worms come and go. Some of the plant life has gone as well, but what remains appears to be healthy and happy.