hello nice that you have joined the forum!

Sorry to sound a little negative but it sounds to me there are to many "HE SAID's!"
remember he is in the aquatic trade and probably knows exactly what he is doing with a shop full of products at his disposal.

the Marine keepers on this forum know what they are talking about as they have been through it themselfs. You ony need to look at the photos of their tanks to see this!

I sugest you stop taking the fish shop keepers word for things and go from here with your own research.

all the best robert.

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