Here's my low light, low tech 55 after 6 week's of growth. I don't have any good pic's of when I first planted it but all plant's were between 6 and 8 inches. I have some hygrophillia polysperma, and corymbosa, water wisteria, water sprite, java fern, amazon sword and jungle val. All my lights are LED, the first pic is with all the lights on and the 2nd is just with the hood lights on. I have a few root tab's in by the sword and val's other than that I dose with Seachem comprehensive whenever I do a water change which is twice a week.