No, there weren't any fish in that tank, and I was testing the item in a tiny tank to see if it even worked...needless to say it did not.
Alright, specifications are a 30 gallon rimmed breeder, size 36*18*12. I've got a hood on the tank with an approximately 30 inch slot for a light strip. I'm looking to grow low-medium light plants, nothing too demanding. I've got a teeny DIY CO2 set up, but it doesn't produce much CO2 even as far as diy tends to go.