I see, that makes sense with the water change increasing gradually. It's a great idea. Any luck with your vacuuming the sand during water changes?
I do like the busy look, it gives it more character. Besides, your current arrangement is what you think is best for your
current situation/fish and that's what matters. Things will happen, the fish will grow, and the tank will change with them as the tank becomes more beautiful. Once again, just be careful on how long you wait to add your dither/schooling fish because as the terrors grow, the more territory they'll claim. You have to get them used to tank mates as well while they're young so when they grow, their tendency of just attacking will be less likely. That's my opinion anyway, my terror has yet to reach that monster size.
I'm looking forward to seeing your flash pleco! I actually just realized that the sultan pleco of mine was from Brazil and not Peru, but at least my SDs are found there too. Anyway, I do have one suggestion for your tank deco, and that is adding one more driftwood, but this piece has to be a thick one with a lot of character. It will be a nice contrast of thin and thick. More importantly it has to be tall and sticking out of the tank, if not, almost as tall as the tank and it would make your biotope look more natural IMO.
I hope your SDs behave and not touch your plants, but they are known to be herbivores so plants may be eaten. Just one warning on them, they are pigs(piranha's cousins)! They hogged all the food so I had to put in a lot more extra so my other fish could get a chance to eat. So that's one reason I only have two in my tank...
Like you said, the BHTetras are hard to come by, so just keep that in mind. You never know when the next batch will come.
Great job so far
