Could use some "pond" plant suggestions
I'm toying around with ideas for a cool water tub for goldfish and white cloud mountain minnows. It's a 3'x2'x1' (LxWxD) tub. Water will most likely be water that comes out of the waste part of the RODI unit (high in TDS/calcium/alkalinity). Knowing how destructive goldfish can be, plants would be put in some sort of LECA-esque substrate (aka hydroton), in pond baskets. Given that it's a top-down view of the tub, I would like to have plants more for the aesthetic value than for the filtration value. Cheap plants would be better than expensive plants. I really only have three planting baskets, so it's a choice of three different types of plants. I don't really have any plans for dosing, aside from feeding the goldfish heavily.
I really like lotus plants, but are there any that would do well in a 1' tall tub?
I'm also a fan of water lilies as well. Are there any that can work in this size tub?
Finally, I'm thinking of some sort of Aponogeton. I had a really lovely Aponogeton that had interesting floating leaves before. It may have been A. crispus, but its leaves weren't as ruffly.
Are there any plant suggestions that you have?
So many fish/plants/inverts to keep, not enough aquaria.