you will need to make sure there is a fan or something that gets air moving around in the aquarium. i have to agree with joclyn on that.
for a
cactus garden, i took some of those clear glass candle dishes that are about 2-3 inches deep, maybe 8 inches in diameter. put
cactus soil in it, and an assortment of the $1 cacti from walmart. just random
succulents. don't know any plant names, but they are
growing.