I was always under the impression that both fox-face and butterflies were hell on corals....
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Peppermint shrimp and Trochus snails come to mind, but there is nothing like a thriving sponge population in the cryptic area of an established reef. For me there has always been a correlation between an aquarium taking off and a healthy population of sponge in the overflow area.
I would never eat a coral!Fish are hit-or-miss on algae. Pincushion Urchins from the Florida Keys have been hardy and effective algae eaters for me from hair to bubble to ulva or whatever - they do eat coralline, but I have so much, that I do not care. The urchins do the heavy lifting for me. Lettuce nudis are good too, but they require a LOT of algae and to turn the flow down.
Crabs (hermit and emerald) will not starve. They are not coral eaters, but if you do not feed them when most of the algae is gone, they will switch to coral. You cannot blame them, we would do the same if we needed to.
I was always under the impression that both fox-face and butterflies were hell on corals....
If my tank was large enough for a sea hare, it would have been one of the first things in my tank! I love their squishy faces, they look so stupid and adorable at the same time!I just added a Leapord wrasse for pest control
A seahare for algae control
A sand tiger conch for sand bed.