Please make sure that you have live rock in your aquarium before you remove the biowheel. Live rock is certianly the desired choice of biological filtration for your aquraium. However, you must have some source of biological filter. I did not see anything in your post or in your profile which suggests you have live rock. If you don't, then keep the biowheel.
For a 29 gallon FO
tank, I see no problem at all with a biowheel filter to process Ammonia. Regular water changes will keep your Nitrates low for a FO
tank. However, if you have live rock, this is much better & you can just remove the biowheels.