oooh...like you wanna save them when you change his water or something? I dont think you can save them...IME soon as air hits the water the bubblenests tend to go byebye. Dont worry bout it though,cause they will build another!
I need a plant that is tall enough or "floats". Someone posted on another thread that you can get plants in the reptile section of the petstore that have suction cups so you can attach them to the side of the aquarium. I'm going to look for those next time I go to Petsmart.
I'm not sure that reptile plants are safe for fish though...could have dyes or something but I really don't know for sure. I just buy aquarium plants that are too tall for the tank and they bend over at the top. Mine all love them and sleep in the leaves :)
I'm not familiar with polysterine, so I would stick to styrofoam. Maybe someone else can give you a better answer.
don't go for styrofoam. Please! not only are they finding out about all these toxic chemicals it will leak out, but also, it ruins the planet. There is NO way to disenigrate this stuff. meaning it is literally around untill the world is destroyed one way or another. PLEASE do not support the continued production of this horrible material. please.