Velvet

[mohammadali]

recently i bought a tank with bubble algae and some other kinda pest i left the LS in the tank for a night then i filed up the tank with fresh water for like a day now the LS is clean the bubble algae is gone from the LS all the worms all dead

[Jaws]

Ya from what I've read, hyposalinity won't kill velvet but hyposalinity still involves a low salt level. Pure freshwater wouldn't include any salt which you would think would kill everything. I just hope it kills everything in all stages. It's too late about killing the live rock too. I've had the tank full of fresh RO water for a couple days now. The rock was cleaned with Bleach and Muriatic Acid before it was put in the tank so there wasn't much life on it anyways but at least it was cycled. I just don't want to put the fish back in there after 6-8 weeks only to find that velvet could survive in freshwater and have to start all over. Again.

[Skimmerking]

i would add some Vinegar to the tank too if you are running FW this will drop the PH and hewlp kill off any other stuff.

[Jaws]

Good call.