First time poster long time reader. I’ve ordered a semi custom tank from planet aquarium. I went with 48x24x30. I wanted longer but the wife is kind enuff to support my hobby but not a bigger foot print in the living room . I already have 2 ai hydra 64’s from my previous tank which was the traditional 24” deep. I’m wondering if the recommended 12 inches off the water is still a good idea. I’m starting from scratch there’s no coral going right in. Plan on being a mix of lps and sps. Any input would be appreciated.