Misc tank status notes

• pH:
• Temp:
• KH:
• GH:
• NH4:
• NO2:
• NO3:
• PO4:
• Iron:
• Dosing: 5 mL Flourish, 0.5 ppm iron chelate
• NO3:PO4 Cumulative Dosing Ratio:

Notes:

The Alternathera reineckii has been growing in pretty bushy, I've been trimming the tops off to keep them from growing taller than the currently stunted Rotala rotundifolia behind them. The Limnophila hippuroides to the left of the reineckii has been growing in so nicely, I will probably start thinning out some of the reineckii in the back to let more of the hippuroides grow in its place.

The Anubias nana seems to have sprouted a flower stalk, I am waiting for the the flower to emerge so I can snap pictures. You can see in the picture that the flower/plantlet stalk for the Kleiner Bar has doubled in height, and the leaves/flower is just starting to unfurl.

There hasn't been any further browning of the java fern in the past couple weeks. It seems that whenever overall plant growth slows down (some plants showing stunting), the java fern can more successfully compete for nutrients in the water. When overall plant growth is fast, then the java fern seems to be unable to compete as well, resulting in the brown patches. Or perhaps the growth rate of the java fern speeds up during this time, so that it requires more nutrients than is available. Perhaps nutrient concentration (which??) has to be increased to compensate.

The Ammania seneglaensis and Ludwigia peruensis are slooowly recovering, though the new leaves of the peruensis are growing in stunted, like the Rotala indica/rotundifolia. One stalk of the senegalensis is growing in normal sized leaves, though the other stalks are throwing out small leaves.

I didn't run the UV this week before the water change. It almost seems like running the UV might have some relationship to causing some of the plants to stunt, though this is just speculation, since I have been changing too many other parameters in trying to fix the stunting. The UV definitely seems to cause some sort of chemical reaction/precipitation, though. I'm surprised that I don't see any others on the forums with the same observations, even those running the UV 24/7. It might be that their UV has a weaker effect because they have a relatively smaller sized UV unit or a faster water flow rate through their filter. I will try to get the plants to grow normally again without running the UV for a couple weeks, and then see what changes after running the UV.