[Michael Hoaster]

Thanks, 3d-Reef, I will. I have a CO2 setup for my freshwater planted tank, which I originally bought for my calcium reactor for my reef tank.

I don't plan to add nitrate until my seagrass gets nitrate limited. This shouldn't happen until some time after my sand bed matures and/or I add fish (and feed them) and phosphate levels rise, throwing the N to P ratio out of balance.

I've been thinking about how to make my old trickle filter adjustable. As the seagrass gets established, I expect it's ability to uptake nitrate will grow. It would be cool to make the trickle tower 'modular', so I could add height and bio balls as needed.