- Joined
- Jun 24, 2015
- Messages
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- 140
Hello everyone. So I have some questions if anyone can answer I'd appreciate it. So I have a 35 gallon tank and have a led ray2 lighting fixture 30in and I as just got an actinic T8 it's only 18in. I am wondering how long should I leave them on? Hours a day? Which stays on longer...etc. please help thank you so much.

