Planted Tank Obsessed
Join Date: Jul 2012
Location: Los Angeles, CA
I want to say CO2 is your biggest problem. The node spacing on your plants are extended (basically your plants look leggy). I've primarily seen this happen when CO2 is insufficient.
Track your CO2 rate by measuring your drop in pH (pH just before you start your CO2 injection vs. pH at different time intervals after injection has started with at least one measurement just before you shut off your CO2). An even better metric though is just observing how your plants respond. You should see pearling underneath the leaves of your hygro and also your a. reineckii / ludwigia (if that's what your red plants are). If those are A. reineckii then you got some serious CO2 deficiency going on based on their leaf form and internodal spacing.
For CO2 dosing, i prefer to push my tanks to the limit. I basically raise my injection rate to the point that my fauna start to get uncomfortable. Then I implement measures to increase my gaseous exchange with more surface agitation, better water surface maintenance, running airstone at night, etc.
ADA 120P, DoAqua 90P, ADA 60P, ADA 30C x2, ADA 45P, ADA Mini-M