Follow along with the video below to see how to install our site as a web app on your home screen.
Note: This feature may not be available in some browsers.
Spot treatment should be done outside the tank and rinsed with tank water prior to being added back to the water.I dosed it directly 2 times. The first time I was fighting Dino’s and went by the recommended dose and there were no issues with anything other than it worked killing the dinos. The second time I was trying to squirt it at some gha patches and I used twice the recommended dose in 1 application. Within a couple hours I could see some negative affects. My candy cane shriveled up bad. I instantly went into water change mode and everything survived. It took about 2 weeks for the candy cane to fully recover.
To me it seems like a fine line with overdosing it.
He added 3mL of hydrogen peroxide to my 20 gal tank and about 5 hour later my frogspawn dissolved.
Wouldn't the OP's statement negate that claim?What's the point of doing a water change with an H202 overdose? As far as I know it doesn't hang out too long, maybe a half an hour or so before it becomes O2 and H2O.

Wouldn't the OP's statement negate that claim?
Explain?It might negate the claim that the peroxide killed the coral.
Explain?
Clearly a water parameter is off. Allowing coral to die in a nano isn't exactly beneficial to it's environment. You wouldn't do a water change?brandon429 is doing a pretty good job of it. Peroxide does not hang around long at all in seawater. Ask RHF. Why would one need to do a water change?
Clearly a water parameter is off. Allowing coral to die in a nano isn't exactly beneficial to it's environment. You wouldn't do a water change
@Randy Holmes-Farley What are your thoughts?
Sometimes you can’t just removed a rock to treat it outside the tank. I’m not suggesting using peroxide in this manner, it was something I tried. As far as doing a water change, that’s the first thing I would do if I thought I added too much of something to the tank.
Sorry to say but thats way too early to be introducing corals in a tank. 6 weeks your still seeing a cycle. Even if your not then at best you should start with hardy corals like zoas to see how they react to the new tank. From there slowly add new coral while monitoring all levels and making adjustments.

