Best plants for sand substrate?

Also, how long does it take for Anarchis to grow roots? I got some from Petco last Monday and they were clean cut at the base. They are a little droopy and I've moved them multiple times (to remove snails and then for placement and then cus I changed substrate). They should be in their permanent spot now and just wondering how long until they stand strong (I'm guessing this is related to strong rooting?)
 
When I had some Anacharis in my sand substrate, it rooted in a week. I just recently started a Planted tank using Eco Complete and it rooted in a few days.
 
plants with red leaves generally means the plant requires high light and could be more difficult to care for.

what about dwarf lilys? ..thought those were low light..
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[FONT=Arial, Helvetica, Avant Garde]• Dwarf Lily (Nuphar stellata)[/FONT]

[FONT=Arial, Helvetica, Avant Garde]- Easy to moderate difficulty to grow (patience is required for these). These are usually sold as bulbs as there are true lilys that have leaves that vary from green to brown to shades of red. The growth of these plants parallels Banana Plants (which is another type of Dwarf Lily). Often these Lily bulbs are sold by stores such as Walmart as Assorted “Aponogeton Bulbs” (usually dry) and many will never sprout (usually anywhere from 1/5 to ½ may not sprout).
These are actually better to keep under low to moderate light, otherwise you will end u with large green common lily that looks more appropriate in a pond than an aquarium.
Also Plecostomus do NOT do well with lilys (they will usually eat them faster than they can grow.
These bulbs should not be planted, although plant soils such as Azoo Plant Grower bed can be added to the area around the bulb to aid in nutrients for the sprouting plant.
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