Need help sps dying.

[De Michieli]

I personally use this carbon in my reactor http://www.bulkreefsupply.com/bulk-premium-rox-0-8-aquarium-carbon.html
And I do weekly water changes with http://www.bulkreefsupply.com/hw-marinemix-reefer-salt-mix.html . My tank sits at 7-8 and .04-.02 Po4

The best stuff about this salt is it always tests the same.

 

[Wolff92]

If you are carbon dosing you want your alk to match that of natural seawater which is around 7-7.5. High Alk in a ULNS will cause the tips to bleach out on acros.