Looks like the same bleach I use from HEB. Some things I would add to help all of us guide you better:
1 - Update your signature with your pool details. Your pool size is important as well
2 - A CYA of under 30 is questionable as the readings aren't accurate below 30. You might consider verifying once again and/or adding just enough stabilizer to be sure the dot disappears at 30 (SLAM of 12). If you overshoot slightly to a CYA of 40, then increase the FC to 16. Just use Poolmath as best as you can.
3 - Make sure you increase the FC to the SLAM level (i.e. 12) and maintain it in the beginning. It should never drop to 1. By then all your effort (and bleach) is history and you're starting all over. Add bleach and check the FC about 10-15 minutes later and maintain it.
4 - Can you give us an idea why the green so early when the water is still probably chilly (unless you heat)? Just so we have an idea of how it got to this point.
5 - Have you added anything else to the water recently other than bleach or perhaps acid?
6 - Next time you post your results, please post the FC, CC, and CYA.
7 - How old is your pool (if you know)?
8 - You might consider lowering the pH to about 7.2 before spiking and maintaining that FC at 12.
Oh, and welcome to TFP!