I have a 30 gallon tank that currently houses three tiger oscars (1 1/2" each) and three gold severums (1 3/4" each) as well as two Schwatrz cories and three rubber-lipped plecos. Are there any plants that I could add to this tank that the cichlids would not destroy? Or should I keep this as a fish only tank? I know that I will have to move the oscars and severums to one of my bigger tanks within the next two years because of their growth- I want to turn this into a planted tank for dwarf cichlids over that time period by adding plants slowly while waiting for my current fish to outgrow the tank. Any suggestions on low light and low maintenance plants that are indestructible would be greatly appreciate. Thanks!