Is it to much light?

[Libimagana]

Hello everyone
So it's Ben about 4 months since I got a new coralife ho t5s 2 white 2 actinic so bulbs are new it came with all bulbs I just replaced one white bulb
I noticed every time lights come on after a few minutes some type of algae grows on my anemone tentacles and on my corals t irritates my anemone it shrinks the tentacles I have to increase the flow to remove the algae
My phosphate are less than 0.25 or I might be wrong
0 nitrate
Dkh 10
Ph always changes 7.9to 8.0
Temp 77/78
Could the phosphate be the reason or is my lights?

 

[Reefing Madness]

Seems like the lights have been on there long enough for your tank to get used to them. Phosphates you want under .05