Hi Bigworm, welcome to Reefland!
Your numbers are fine! In fact, they are great!
The alkalinity of natural seawater (NSW) is approximately 7-8 dKH but it is wise to maintain alkalinity in reef aquaria above NSW levels to provide an extra measure of safety. I like to keep my alkalinity around 10-12 dKH and my calcium around 425-475 ppm. Calcium and alkalinity are tied together in a complex chemical balancing act.
Delbeek & Sprung (1994) recommend a range of 7-12 dKH as ideal. Levels below 7 dKH will result in retarded calcification in corals. Levels much above 14 dKH may result in lowered calcium levels. I would not be concerned about alkalinity being "too high" unless it climbed above 16 dKH.



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Then you could get another clownfish of the same species as your existing one so that you would have a pair.


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