lol second the amount of sponge filters! but i can't say anything.. i have 2 of those sponge filter connected to 2 hob's PLUS a sunsun 302 on my 20Long lol. I like it!
Do you you already have cherries? if so I would definitely go with the yellows, they look great. otherwise if you want to stick to cherries i'd get pfr's for sure sure.. or red rilis!
You shouldn't need to raise the light at all, I highly doubt it will spread out the light any more due to the way those led's are, but it might..