Actually, if your readings are accurate, and honestly, pool stores aren't know for their accuracy, your numbers are not fine.

FC + CC = TC So, that means you have a CC reading of 1.8 which would not be good. (You want CC to be 0 or at least no higher than 0.5.)

Therefore, unfortunately, it may very well be algae.

With a CYA (stabilizer) level of 65, you have to keep your FC between 5-10 ALL the time. If it dips too low, then algae can get started. At this point, you need to shock your pool. Again, the shock level is based on your CYA reading and will be 20ppm. More about the CYA/Chlorine connection can be found here: http://pool9.net/cl-cya/

You are going to need a Taylor K2006 kit. Since it is going to be necessary for you to run chlorine readings as high as mentioned above, you need a kit that can measure higher than 5 which is the limit on these other kits. This kit won't be available locally but you can get one through this link: http://pool9.net/tk/

In the meantime, can you go to Walmart and see if they have the HTH 6-Way drops-based kit (not test strips). If not, at least pick up a cheap OTO/Phenol Red kit (yellow and red drops). Also, get a bunch of jugs of their generic 8.25% bleach.

Test and post your numbers and tell us which kit you bought and also what your volume is. Then someone here will help you go from there.