2 pictures please look

Well first picture is of the water flowers that were on one of my live rock, should i be concerned? And second picture is of my tank, i re did my rocks, and there mostly backed up on the back glass, only one is touching the glass, but i tried and made as much open caves as i could, fish should like it? i have alot of open sand in the front so it will be easy to clean weekly, so let me know what you think.



https://fbcdn-sphotos-b-a.akamaihd.n...6a1a8686e6cc75



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