Each goldfish will pick what plants you can ultimately keep. They will also redecorate for you.
There's a bunch of trial and error with a planted goldfish tank.
I feed peas a few times a week to help cut down on the nibbling of plants.
Here are the plants that I've had experience with my shubunkin goldfish:
*Anacharis - Eaten and constantly pulled out of the ground
*Anubias (Nana and Hastifolia) - Left alone
*Amazon Swords - Left alone
*Moneywort - Nibbled and constantly pulled out
*Fox Tail - Pulled out
*Red Crypt Wendtii - Left alone
*Water Wisteria - Nibbles on occasion but it grows so quickly that it doesn't hurt it.
*Floating Water Sprite - Constantly nibbles but it grows so quickly that I have to throw out handfuls of it. Since adding this in he leaves other plants alone.
*Green and Red Cabomba - Pulled out
*Java Fern - Left alone when attached to driftwood.
I think I'm forgetting one, but that's all I can remember right now.
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