Mamashack said:@ Zik - I'd be suspicious of that 0 nitrate on the API test - maybe the reagents weren't mixed enough - very rare to have 0 nitrate at all. What's the other test you use? I have both API and Salifert and the Salifert one is my preferred test - just have API as back-up really.
@ Dandyman - have you tried filter floss in your filter to "polish" the water? When are we going to see your tank? Heard a lot about it - would be nice to see it too.
I thought you had seen it! It's on these forums here and an issue I am having with plants here.
I spoke with AE and they advised what it looked like in the pictures 'die off' is from not doing enough with relation to CO2 hence the interest in this setup. I have the tropica plant growth system and put in daily doses of liquid co2/fertilisers so wondered why. They recommended I increased circulation and increase the water changes whilst this issue is present.
I had to remove one of the plants (not one from AE) which had taken a turn for the worse. I am wondering if that dying had created all this mess in the tank. But having learnt so many things on cycling, substrate, etc. Would definitely want to look into redoing the tank now as the substrate I have is just basic gravel with no nutrients in it at all...