Planted Tank Guru
Join Date: Dec 2012
Location: Hot Springs Ar. 71901
If you push it back from the front edge about 1.5" I think the STS would be best for the CEC effect. That way it wouldn't show along the front. If you have MTS or any trumpet
snail types the STS will end up on top. The color difference is the problem/w it.
I have had Laterite under Eco for over two years, but no trumpet snails and those two have that same color difference and just a few of the pieces of the Laterite are on the top and I do believe it's because of pulling up plants. Not just on it's own.
That may be the case/w some types of sub materials...but not all. Some need outside influence to move like the trumpet snails.
You might try black Flourite. That way at least the color isn't a clash and if it does
work it's way up it won't be noticed to any extent.
The shortest distance between any two points is a straight line...in the opposite direction...