WWW.WA S .ORG • WORLD AQUACULTURE • JUNE 2022 37 ( C O N T I N U E D O N P A G E 3 8 ) FIGURE 9. Ingredients of the gel-diet include from top to bottom (a) dried and blended Ulva, gelatin and shrimp feed pellets ground and dissolved in water, (b) mixing the ingredients with hot distilled water, (c) cutting gel-diet cubes, (d) weighing frozen gel-diet cubes to feed milk conch (Photos: a, b, c – Megan Davis; d – Chalier Dones-Ortiz). trapped in the sand into a spraying station container (Fig. 11a). With the tray still in the spraying station, debris and the minimal amount of sand that fell through the tray screen was vacuumed off the tank bottomwith a PVC pipe siphon into 5-gal (19-L) buckets (Fig. 11b). After siphoning, heavier particles were allowed to settle in buckets (Fig. 11c). Then, seawater in buckets was carefully decanted and returned to the sump, avoiding the re-introduction of debris. Nutrientrich debris from tray spraying was disposed of due to the heavy concentration of organics, which could have been detrimental to the a b c d
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