Want to thank you all. I took a break from the hobby and am now getting into it again. This is all great information! Not to jack the conversation, but does this information scale to 100+ gallon tanks? Still have an old RexGrigg CO2 regulator with solenoid and needle valve.
I don't mind a thread "hijack", it's all good. But your tank may be a different size than mine & I'm low tech (no co2) so you've got other stuff to consider...dougall tends to be, well, more knowledgeable in all aspects of planted tanks. He helps us (me) lame planty folks & the more advanced. Signus, you seem more advanced & would be best to let dougall & others help you in a new thread.