Also I'd say stop by Gabe's he is on the corner of Evers and 410 and is probably the most knowledgeable LFS in San Antonio. I agree with Mr. Cob that damsels are hardcore and plain mean. I'd also probably take that sealab #28 block out of the tank as I don't think they add much benefit, (I used them when I first got into saltwater and they didn't seem to provide any benefit). Just use the Kent buffer to keep your PH in check.