I second this, please stop dosing hydrogen peroxide, there's no need for it. It's not a strong enough oxidizer to "kill" anything bad, but it's strong enough to work against the beneficial organisms most of us would like to foster. I believe this is causing you much more harm then good. Some of us dip coral frags in H2O2 (hydrogen peroxide), but that's different. I don't think there's any reason to add it to a typical tank.
Are you experiencing Ich on your Tang? If so, hydrogen peroxide is not the recommended cure. There is a whole other procedure you need to do if you have identified Ich on your Tang. Or, in my very humble opinion, even if you think your fish (any of them) have any kind of parasite, hydrogen peroxide is not a cure.
My phos is 0.63 and my nitrates are 75. Keep in mind this is normal for this tank as it's filled with softies and leathers and they are very content with these levels.
Ich is not the main point of this post, I just briefly mentioned it to explain the use of h2o2. I have seen good results with it, and I know several people with great results with it. But I'm not getting into that debate here, that's not why I'm postingI second this, please stop dosing hydrogen peroxide, there's no need for it. It's not a strong enough oxidizer to "kill" anything bad, but it's strong enough to work against the beneficial organisms most of us would like to foster. I believe this is causing you much more harm then good. Some of us dip coral frags in H2O2 (hydrogen peroxide), but that's different. I don't think there's any reason to add it to a typical tank.
Are you experiencing Ich on your Tang? If so, hydrogen peroxide is not the recommended cure. There is a whole other procedure you need to do if you have identified Ich on your Tang. Or, in my very humble opinion, even if you think your fish (any of them) have any kind of parasite, hydrogen peroxide is not a cure.
If you have algae or dinos or whatever, additional flow can go a long way to helping with that.
If you have Ich or any kind of fish pathogen, you have - in my very humble opinion - a much bigger problem.
If you think you may have Ich or a real pathogen that may be jeopardizing the health of your fish, my advise would be to take the best pics of your fish that you can under the whitest lights you have (meaning all blue lights off), and please post in the R2R section for sick fish:
https://www.reef2reef.com/forums/fish-disease-treatment-and-diagnosis.771/
If you post there, you will get more replies from our heavy-hitters who are the most knowledgeable about fish disease and pathogens - no offense to those that have already replied here, of course.
Sorry to sound the alarm, but if your fish are sick, time is critical, and you're "algae problem" can wait, in my humble opinion.
As always: I am NOT an expert in anything, but if you're fish have an illness, please let the R2R experts help you and your fish. If I am wrong, then we can all have a good laugh at my expense. But you went from 'algae' to 'Ich' so fast, I'm concerned, and I think you may need to move quickly. Hopefully I am wrong
Best of luck to you and you fish!
You are certainly free to do with your tank what you think is best. You reached out here because you're having some trouble, and more than one of use felt that the addition of H2O2 to your tank is what's causing your problem. You can do what you wish with that advice.
