10-10-2007, 10:31 PM
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I agree, substrate is not needed for fry or brooding, and all plants I would have suggested except the duckeweed. Duckweed is a pain in the butt to get rid of once it is started, and all it takes is a tiny piece of a dried leaf to cause it to start growing... it is best known for taking over tanks and killing other plants by drowning out light and consuming all of the nutrient level. Duckweed is a lot of work to care for once it gets going, it grows almost overnight into unmanagable amounts. I would avoid duckweed unless using it to feed something. Hornwort and hair grass aka naja grass have always been my favorites, along with java moss. One other that my livebearers always do well with is wisteria, but it requires a good light source and can tend to have very brittle stalks, so can get messy if its needs are not met.
Teardrop rotala is another I've always found quite easy and good for fry because it is dense... along with fox tail and other "needle leaf" plants. Be forewarned, fox tail and others like it will tend to also need higher light and good nutrient levels with iron additives. While dense enough to make good fry plants, if plant care isn't something you wish to worry about, hornwort is one of the easiest, as is the naja grass and java moss. When using plants in a brooding tank, be sure you have thick cover from top to bottom of at least 1 end of the tank, so the fry are able to move to all ranges of the tank safely until the adult fish is removed.