Hello again Melanie, and welcome! Just to emphasize a few things to help you:
1 - I doubt you actually killed your algae. It went from green to blue, but it's still there (cloudy) ... lurking and ready to fight back
2 - You do indeed need one of the recommended test kits (see TF-100 link below); Why? Because we've all learned (from personal experience) you cannot reply on pool store tests, test strips, or simple over-the-counter kits. They also don't read Free Chlorine (FC) or Cyanuric Acid (CYA) levels accurately or to the high levels we need.
3 - You will need to SLAM (link below). This is the TFP process to remove algae - period. It works, and you only use bleach! But before you can SLAM:
a. Get that test kit ASAP
b. Keep PH at 7.2 in preparation for SLAM
c. Your CYA "appears" to be quite high for a non-SWG system. In fact, we ideally like it at about 30 for a SLAM to save on bleach. But caution - we really don't know your true CYA because you don't have your own test kit and we don't place our faith in test strips or the pool store. But if it turns out to be high, you have the option to do a partial drain to lower CYA or just use more bleach during the SLAM.
So you can see the common theme here ... test kit.
For now, remove any pucks/tablets, and do not use any pool powders or shock because they raise CYA. Use only liquid bleach for now until your kit arrives.
Let us know when that kit arrives and give us some good numbers.
- - - Updated - - -
Oh, and don't forget to add you pool info into your signature! Add your pool info to your signature by going to the top of the TFP web page (just under the Pool School button) and select "SETTINGS". On the next page look to the left for a menu bar that says, “MY SETTINGS” and go to "EDIT SIGNATURE" to enter your pool and equipment info there. It will help us later.