The friendliest place on the web for anyone with an interest in aquariums or fish keeping!
If you have answers, please help by responding to the unanswered posts.
Reverse lighting...? As in, when your main tank is on during the day, the sump/fuge with the Chaeto is off. Then at night, when the main tank lighting is off, the light over the Chaeto turns on..? Did I get that right?