i set my timer to on it 1 hour before my light come on n it will go off an hour after my light go off..n it will depend on wad light u use..mine mh so the heat generated might be more then t5s.
hope that will help.
haha..i drill hole then use cable tie..took awhile to do it thou..hope u guys like like it as much as i do! haha
still deciding wad fish to put..so small tank scared over load..maybe just a few will do..