On another note, I have flat worm, I have got rid of most, but have purchase flatworm exit to make sure.
I'm thinking of this method, taking my rock and corals out in one go all glued together putting into a large tub with 25 litres out of my tank, using flatworm exit in the tub, whilst this is happening, removing my sand which I've been thinking of changing, this way it keeps flatworm in the tub once dead and use fresh saltwater when returning to the tank the rock and corals.
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