[angelicarboreals]

Absolutely not.

As already mentioned, the diet requirements are vastly different (lories eat nectar, while cockatiels can eat pellets, seeds, etc.).

Also, lories are known to be aggressive to birds of other species, and because a lory is so much larger than a cockatiel, serious injury could be the result. Lories are also extremely active birds, and would probably drive a cockatiel nuts with all the bouncing around.

If you cannot afford to house the two birds in separate cages, then I would refrain from purchasing a lory until you can financially provide both birds with suitable individual living spaces.