Dosing bleach

[56longroof]

Has anyone heard of dosing bleach in a reef aquarium? There was someone on one of the Facebook groups that swore by it. Claimed 2 ml per 100 gallons would keep algea off the glass. I have never heard of this at all here. Any thoughts?

 

[Terry Le]

Why?

 

[JGT]

Has anyone heard of dosing bleach in a reef aquarium? There was someone on one of the Facebook groups that swore by it. Claimed 2 ml per 100 gallons would keep algea off the glass. I have never heard of this at all here. Any thoughts?

Yes, someone on R2R posted it a couple weeks back. Said the guy on FB said it was the key to his successful tank. Find it hard to believe.

 

[Troylee]

Jposch does it. He has a big thread about it on humble fish. He owns a online store I forget the name

 

[me & my baby]

I am pretty sure it’s called premier reef

 

[JGT]

Heres the R2R thread:
https://www.reef2reef.com/threads/bleach-dosing.1166274/

 

[Troylee]

I am pretty sure it’s called premier reef

Yeah that’s it!

 

[56longroof]

Heres the R2R thread:
https://www.reef2reef.com/threads/bleach-dosing.1166274/

Thanks for the link. I can't believe I missed it.

 

[Fish Fan]

Jposch does it. He has a big thread about it on humble fish. He owns a online store I forget the name

What does it supposedly do? In the other thread, RHF concluded that he would not dose bleach.

 

[56longroof]

What does it supposedly do? In the other thread, RHF concluded that he would not dose bleach.

The person on Facebook swore it kept algea and bacteria at bay. So much that they never had to clean the glass.

 

[Reef Jedi]

If it does that to algae I can’t imagine what else it’s doing. I wouldn’t risk it.

 

[EnterName]

Jposch does it. He has a big thread about it on humble fish. He owns a online store I forget the name

What does it supposedly do? In the other thread, RHF concluded that he would not dose bleach.

It increases redox/ORP. You could get the same effect with hydrogen peroxide without having chloramines accumulate in the tank. However, it's "safe" when done in small portions as chlorine is very reactive and won't ever reach a fish or coral before it has reacted.

I see three scenarios (there may be more):
1. in the tank these people report success with bleach dosing there is some reason why increasing ORP has a beneficial effect.
2. Chloramines have some unknown (or at least unbeknownst to me) effect that benefits some tank inhabitants or inhibits algae growth.
3. It's just the imagination of the dosing people and there are no benefits as we have no controls and actual study this isn't too far fetched.

 

[56longroof]

If it does that to algae I can’t imagine what else it’s doing. I wouldn’t risk it.

I have no intention of trying it.

 

[mmorrison55]

I don’t know if the bleach dosing that causes the orp to rise is the reason he no longer has to clean his glass. Or rather the high orp is the key.

I run ozone, and my orp is pretty high but I still have to clean my glass weekly.