3 week cycle question

[cvanchuck]

on so I'm not sure if I should worry or do anything about it. I'm in late week three almost week 4.

My 75 gallon tank has very small amounts of diatom growth. On glass and on rocks.

pH 8.2 ammonia 0. Has come down from major Spike and has been down for 4 days now. Nitrite 2. Nitrate 80. Plenty of water agitation.

My 24 nano has the same exact levels but massive diatom growth. See picture.

Anything I should be worried about? Or is this normal? Both nitrite and Nitrate been the same for 4 days.

 

[cvanchuck]

For some reason it posted the same photo multiple times

 

[cvanchuck]

This is from my 75