Hoping some of you on TPT might be able to help me figure out whats going on with my tank. If you dig thru a few of the pics in my build thread (bottom of this post) you can see my Amazon Sword typically looks very healthy. Lately, it has been looking pretty "not healthy". I have been trying to figure out if my fert dosing is to blame or if it is some other factor.
For what it's worth, my KH measures out to 9-10 and my GH is 14 (using API test kit). I have been dosing PPS Pro (more or less) for over a year. As of late I have been dosing the macros at about 1.5 mL per 10 gallons (currently 10 mL for the estimated 60-65 gallons of water in my 75 gallon tank). The micros are dosed pretty lean (mixing 3-4 grams of CSM-B in 500mL bottle, then dosing standard 1mL per 10 gallons).
Here is an overhead shot of the Amazon Sword and the Melon Sword next to it. The new leaves look good but seem small. The older leaves look to have a lot of Pleco damage but what bothers me is the rotted bases of the leaves (second pic).
One of the water parameters that I just recently tested was the Nitrate levels. The left tube is straight out of the tap. The middle tube is from my 20 gallon sump/storage tank under my display tank (it is a few days old and has been dosed with Prime). And the right hand tube is from the 75gallon tank. In person, the right hand tube looks like more than 80ppm (maybe more)
I have been looking thru the various images on this site Deficiency Finder
Was thinking maybe a Nitrate deficiency but the water parameters would seem to say differently.
Hoping some of the experts here might be able to offer some input on what I might be missing or doing wrong.