H2O2 directly into tank??

Nice to know it works. Any adverse effects, other plants lose leaves, fish deaths, ect???

It's fine if you don't OD in one area where say a plec would be...I'm pretty sure I killed mine this way
 
I've soaked plants over night in 50/50 water h2o2 mix. They were healthy. But i think inverts, and other delicate fish are sensitive to it. Based on research. not experience.
 
I use it all the time.

I read that some people actually pour H-peroxide directly inot tank for algae. Is this true?? Would it work as good as Excel??

I always thought that you should just use it as a dip.

I use it often. Both, directly into the aquarium and as a plant dip. I am hesitant to use a syringe and place it directly on the algae in a tank containing inhabitants--I am afraid that they swim though a concentrated area and burn their gills, perhaps this is too cautious.

When directly injecting into the tanks, I am comfortable with 1 ml p/gal p/day. If the algae does not begin to respond, I repeat the doses every 12 hrs instead of every 24 hrs. If this too fails, or is too slow, I go to 2 ml p/gal pay, etc. I have never had to use greater than 3 ml p/gal p/day for very long to control even the most stubborn case of algae. I would be careful with shrimp and other 'dainty' inhabitants--or, in other words, use caution! I have been using it for a couple of years now, at first I was VERY cautious--then I relaxed, a bit. Go slow until you gain a 'feel' for its' use and effects on the inhabitants of your aquariums--but then, that is good advise with nearly everything.

Now, all that said, I have seemed to notice that high doses of hydrogen peroxide, over time, seems to damage/kill vals, anacharis and other plants which I have forgotten about. The crypts, java moss, java ferns, swords, etc. all seem fine with the treatment, however, if you are going to use it for prolonged periods of time KEEP AN EYE ON THE PLANTS. Keep an eye on the fish also, if you happen to notice any signs of distress, halt treatment immediately--and, again, like with almost everything you place in your tanks.

Somewhere, I read that algae has no mechanism(s) to deal with abundant oxygen, and this is why it is so effective (I have found it to be much superior to Excel)--however, I am unable to find those sources now. Perhaps someone else knows why it is effective and will post the reason(s.)

Good luck!

Regards,
TA
 
people also suggest that you dose h202 with at least 30 minutes of light left in your daily schedule, as some people have claimed that doing it with their lights out has caused fish death. Also turn your filters on/back on within several minutes of dosing.

the two times i did it i dosed during water change with no filtration so that it can more or less stay in the same spot for a few minutes. i then went to fill my buckets, filled the tank, then turned on the filters. everything turned out okay.
 
A few capfulls turns "my" hair algae a pretty red-orange; the algae fades away after a few days. I just pour a little into my 2.5G (where most of the algae occurs; rarely if ever in my 6 and 10), and the filter spreads it around, causing a great bubbly effect. I had hair algae on an anubias nana once, so soaked the plant (which I had taken out to do some aquarium cleaning) in straight H2O2 for maybe half an hour... very bad idea... the plant recovered but only after giving me a "you just wasted $10 by killing this plant!" scare...

Slightly off topic, but Excel was mentioned above. I used it in the same 2.5G tank when I had a betta. The fish developed incurable pop eye so I blame the only thing to change in his environment -- the Excel. I'll never ever use that stuff again; I'm sticking to Kent's Freshwater... which I think also controls algae while feeding the plants.
 
Slightly off topic, but Excel was mentioned above. I used it in the same 2.5G tank when I had a betta. The fish developed incurable pop eye so I blame the only thing to change in his environment -- the Excel. I'll never ever use that stuff again; I'm sticking to Kent's Freshwater... which I think also controls algae while feeding the plants.

Pop eye is caused by a bacterial infection and has nothing to do with Excel. Your experience is purely coincidental.

What product from Kent are you using, specifically?
 
I used soft brush during water change to kill BBA on Anubias and Amazone Sword. Anubias was OK, Amazone Sword turn brown and the BBA turned red the next day - I had to cut out the leaves.
 
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