I would think they would be fine but it will be hard to do anything with them. Too bulky in my opinion. I just use regular latex or vinyl gloves. They don't protect the arm but they do well. Wrap a rubber band around the wrist and you will keep the water out.
*180 gal Display, 100 gal basement sump, 33 gal refugium, 3x250 MH, 2x160 VHO actinics, zoos, some softies, LPS & lots of acros and other SPS.
*100 gal prop tank plumbed into main system w/ 2x96 PC lights and 1x150 MH,