Hi all, I cycled my tank for several months and water parameters are perfect. This past Tuesday I added two beautiful davinci clowns. Yesterday they were both pooping white so I went and got recommended prazipro. I treated my 30 gal tank with 7.5 ML of Prazipro. One of my fish is now sitting on the sand tilting, but then will swim around just fine. I'm not sure what to do =( They are sea and reef extreme davinci's. I got them from the LFS after 1 week they were there for. My tank was cycled with dr tims method. The other fish seems to be fine.