Is 250w mh to much for my 29g reef?

[Trigs]

yah the heating isn't to bad of a issue for me i have a fan running on it so it somewhat works im just worried about keeping my corals and such but i think it should be fine, other than that everything seems to be going great i have it on a 2 scheduled timer that pretty much runs it at 2 different times a day about 7-8 hours a day, the temperature pretty much stays in between 78-79 sometimes 80 so thats working fine only thing that worries me is now the skimmer, any ideas on a better skimmer or should i go for the gusto and buy a new cube tank and get a sump going? =) =)