The big apple I just saw Weruva has a new line of small phosphorous food termed Wx. The phosphorous content is Tremendous low. So minimal that it are not able to claim for being ‘total and well balanced’ and they say which the vets should be consulted if it’s suitable https://sergiofrakt.dailyhitblog.com/3426270/the-ultimate-guide-to-aqua-ocean-sps-premium-marine-salt