Planted Tank Obsessed
Join Date: Dec 2014
Location: Colorado Springs
I've got a relatively heavily planted 125G tank whith a 40G or so sump underneath it.
I decided to purchase a submersible ammonia detector (it was dirt cheap) along with the master API test kit.
The sumbersible ammonia detector clearly states that the indicator color takes hours to detect ammonia and start to shift color, and will take hours to switch back after the ammonia is gone.
I've noticed now that if I come in to the office and look at the detector in the sump first thing in the morning, it's saying there are low levels of ammonia.
However, when I run a test with the liquid API kit, it shows nothing. No ammonia, nitrites or nitrates either.
Is it possible that when the lights are on, the plants are consuming all of the free ammonia, but then when the lights are off, it's starts to build up over night, until the next morning? I would have thought the sump to be well enough seeded by now.
I looked around online but didn't find any similar scenarios, but if I didn't have an ammonia detector with such a built in lag time, I don't think I'd have ever noticed it either.