Ive never heard of Mango. ???
This is off of
PlanetCatfish.com :: Welcome! for your Gibby: Lettuce, Peas, Frozen Spinach and any prepared food that reaches the bottom. Larger fish enjoy prawns or pieces of freshwater trout. Algae (especially soft brown) will be eaten immediately.
And for the Royal: Classic ''pleco diet'' of greens. Can be acclimatized onto most vegetables; tinned peas seem a favourite. The fish also appear to eat bogwood. Some prepared foods should also be offered to supplement this diet.
Bogwood is essential - both for dietary reasons and because it seems to be the Royal Pleco's preferred hide-out.....
You are sort stuck in a bad spot becuase you have two Plecos with different diets. Its gonna make it harder to feed them. The Gibby should havea varied diet of meats and veggies but the Royal needs veggies and wood. Just keep an eye onthere bellies and make sure they are getting enough food.
You also have a bad fish stock for your tank. I hope that some of the smaller fish are going to be moving into the 55G.
