Well purchased some LR from Aquatek, think it looks pretty good. I've got a full shot of the tank...and some of the growth on the rock, what are these??

Test Results:

Temp: 80.8
SG: 1.025 (actually 1.0245 the way I read it)
ph: 8.2
Alk: Normal
Ammonia: 0.044
Nitrates: 0
Nitrites: 0

Are these in the ball park for a very new tank ( just filled up last Friday)? The temp. seems to be hangin at or around the 80-82 range, from what I read it should be around 72-79 range. Whats a good way to keep the temp down without getting a chiller (out of my price range at the moment).