cs_gardener· Premium Member
It can also behave differently in different circumstances. I have some in a 10 gallon low light (2 15w regular fluorescent bulbs) , low current shrimp tank and it's very soft and tends to have a loose growth habit. I took a piece from the shrimp tank and put it in a 38 gallon, 96w CF, very high rate of flow tank and the individual "leaves" are harder while the stem remains flexible. It also grows more densely with tighter whorls. I pulled some out of each tank this weekend to thin it and the difference was quite noticeable.