Are Plants Bad For Fish?

Are Plants Bad For Fish? Plant Name Toxic Parts Azalea (Rhododendron spp.) All parts Black walnut (Juglans nigra) All parts Bleeding heart (Dicentra spp.) Leaves, roots Is too much plants bad for fish? Can an aquarium have too many plants? Generally not, but in specific circumstances, large amounts of plants can make small problems worse.

Can I Have A Planted Tank With Rainbow Fish?

Can I Have A Planted Tank With Rainbow Fish? Adequate cover in the form of tall plants and other structures is important, but open swimming areas should be provided as well. The “Blue Eyes” and Threadfin Rainbows are perfectly happy in community aquariums of 20 gallons or well-planted species tanks of 10 gallons or less.