Results 11 to 12 of 12
02-16-2013, 11:07 PM #11
Thanks, everybody. That is interesting about the walstead method. My substrate consists of a 1" layer of cheap organic potting soil, covered with a thin layer of bentonite cat litter, covered with about 1 1/2" of gravel. Perhaps I have a walstead aquarium going without even realizing it. I wonder if I even need to add the flourish...it would be nice to get some cabomba going again.
02-16-2013, 11:12 PM #12
It's interesting that most of the creeks around here have little or no plant growth, even in the summer when days are >12 hours long, and even though we are at high altitude, so the sunlight is intense. I assume this is because of high gradient/fast water flow, low nutrient load, and (bingo!) extremely high aeration, thus very little CO2 in the water. But the rocks on the bottom are usually slippery, indicating a bacteria growth, which naturally filters the water.