I wish I had photoshop
I agree, dead center doesn't look
too eye-pleasing
And to answer your question about the Eco-Complete building up toxins, I don't
think it will, I think that's only for sand. But if you do want to prevent it just in case, you can get a Khuli Loach or...3, cause they like to dig around in the substrate. Or you could get Malaysian Trumpet Snails which dig around in the substrate during the day and come out at night. But be warned, they're hermaphrodites, so it only takes 1 to take over a tank