Who Gives A Fish Forums

For real. I lost a whole colony to flatworms once. Now everything gets a Bayer dip before it touches my tank.

Flow and light are big factors, but don't sleep on trace elements. I dose trace weekly, and my Stylophora's been branching like crazy. Ever tested for iodine or strontium?

If you go with GSP, just remember it's basically a weed. But it's a pretty weed, so there's that.

For a 10-gallon, I'd stick with softies like Mushrooms or GSP. They're hardy and won't mess with your water chemistry too much. My GSP's been growing like crazy under similar lighting.