 Re: How To Keep Ferns?
Looks like your medium tank needs more CO2, and a higher flow rate if what I'm seeing there is BGA as well. Low NO3 or high pH can additionally contribute, depending on who you talk to.
Your NPT looks rather yellow... is this just bulb spectrum or NO3 deficiency? Again, CO2 is far too low with BBA growing like that.
Crank up the CO2, and figure out your target nutrient levels, plus a way to reach them. Do it through ferts, switch to a rich substrate, what ever works. Find an established method, or at least scientifically valid goals, and a way to reach them.
At one point I was chasing nutrients around too; using symptoms to address deficiencies. until I switched to a good working model, keeping plants alive was a frustration. Now that I've got a base line to start from, experimenting with ferts to find my own preference is quite easy because of the reduced variables. If something changes, it's usually because I changed it, so a fair part of what happens after is an indication of how the tank is reacting to what I've done, rather than whatever nutrient happens to be running out that I don't have under control. I think just about anyone with success in any method could tell you similar stories.
-Philosophos |