A waterlogged substrate teamed w/ your high temp+high humidity will seem to somewhat do a "burn" on a fern causing it to grow quickly but produces leaves with brown crisp leaf tips. Osmunda fibers work wonders for a well-drained substrate if the fern's roots will be in contact with water all the time. Ferns planted along running/moving water however seemed to flourish better than those planted in a stagnant substrate matter. As bill suggested, i love those Aspleniums as well especially A.scolopendrium also known as hart's tongue (Formerly Phyllitis, so that's why i had a hard time looking for it). Forgot to suggest those as are quite rarely seen here where i'm at. I had bad luck with maidenhairs before as they seem to prefer a more dimmer setup. There are also nice cultivars of ferns to choose nowadays that stay smaller and grow slower than their normal self