What are the rest of the pros and cons of white pool filter sand by the way?
I'm thinking of breaking down my tank and replacing my black flourite sand with MTS topped with white sand after seeing this tank by Tom Barr
But I have some misgivings about doing that as well, as for one thing with my preference for a low-maintenance jungle tank arrangement I don't have good access to clean the sand for the most part without causing havoc. My black sand stays perfectly clean enough looking, but I'm worried it might not be the same with white sand?
I'm worried about the stains/algae you get along the front pane below the top of the substrate, which aren't visible with my black sand, but certainly would be with white.
Therefore I was thinking of either painting a black band on the inside or outside around the bottom of the tank to hide that, but wasn't sure if the black band would look strange with a white substrate. I could possibly do a white band instead if that might clash less?
Another alternative would be to mix up a batch of liquid epoxy or even silicon with pool filter sand and apply a layer of that around the bottom edges of the tank to create in impermeable layer which might match?
But then I don't want endless diatom blooms if pool filter sand is constantly releasing silica.