Pump broke down, and it leached some kind of chemical in my tank… really bad smell… I was at home and heard some noise… checked the living room and the corals where all retracted and a really bad smell… in found the pump removed it immediately… there was some kind of oily substance on the water surface… I replaced my carbon… and did a 15% water change… must be not longer than 10-15 minutes leaking… Preparing more water… but it takes like 2 hours for a 15% water change for me… any advice? Iam scared of losing all my corals and anemones… got quite some worth of corals and stuff in there… what I also noticed was that the starfish was trying to get out of the water… one instantly died… Please help!