I actually had the C. Helferi on my "Wish List" but couldn't really make up my mind. I would really be happy with either. I love a challenge for sure, maybe the helferi is what I will go with. The only concern I have is....the tank is pretty wide as you know. It's 18 inches wide. I have a dual T5HO (30 inches) 31 watts per tube above the tank......I know the reflectors aren't the best, although they are in the "Fair" catagory. When I put the light fixture above the tank, it looks so small, like there would be no way the light would get fully from the back to the front.....I think I am going to have to be really creative on what plants I put in the mid to background, because I will have to have the lights right over the foreground for the Glosso I planned on having.....:/
As for the plans for the tank......I actually stole them from the internet. It's a really (REALLY) beefy design though. Overkill for this tank maybe, but I wasn't going to take any chances. The only thing I would do differently if I were building it again, is on the front of the stand, the way I built it, it makes it almost impossible to put on cabinet doors. I am going to have to fix that, I am just going to have to add wood to the front to get the face, for lack of better terms, to the same level. You can kinda see what I mean if you look at the pictures on my photobucket......I put a 1" X 4" piece on the top and the bottom, but not on the sides in the front. Now, I don't have a place to hinge doors because the sides are too deep.
I will try to find a link for the plans, but as I remember, they were hard to find in the first place......the corners are 4 x 4's notched, you might be able to google diy aquarium stand with notched 4 x 4's lol......Thanks for the kind words for my layout, I appreciate the input.