Humblefish
HF
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- Wandering Nomad
There is a good chance that your rock will absorb some of the formalin. I personally would NOT use formalin with hyposalinity. Too many unknown variables.
Formalin
- Thread starter Humblefish
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No it wont
It gets diluted so fast that it doesn't stick around like copper. (At least my understanding)@Humblefish do you know the answer to this? I have use it down to 1.018 but never lower
EDIT: I am now seeing there is a page 6, sorry for the double and different answer
Humblefish
HF
- Location
- Wandering Nomad
Humblefish
HF
- Location
- Wandering Nomad
It seems to be more of an individual thing than X species will not tolerate formalin, etc.
In the freshwater world, they seem to discourage formalin use with scaleless fish. Noga mentions that elasmobranchs may be sensitive to it in his book.
@Dierks is working with formalin a lot right now, so maybe he can tell us if he's seeing any species sensitivity with the in-tank dosage.
Vested
Active member
Currently dosing it at recommended with a 1.1ml/min brs pump at night, only weird fish death was a bellus angel so far but could have been anything. Ill update anything else useful
Vested
Active member
So far still a solid success rate and haven't seen anything nasty get through, most fish are staying in formalin for 14 days to be extra safe. Have one jawfish that was potentially re-introduced to a parasite and has been in formalin for 3 weeks, no issues still eating like a champ and loving the bare bottom QT. Two more angels since the last post and they have been great, don't think the other one had anything todo with treatment.
Nice work! Stoked to hear it working out
reef pencil
New member
If I were to accidentally dose my entire qt tank with a bath concentration amount of formalin (1ml per gallon) Will this concentration drop over time or do I need to break everything down and refill the qt?
It will drop over time or there are formalin neutralizers as well
Formalin being an organic compound decomposes naturally, but can also be removed using RODI resin media. A simple mesh bag in a high flow area works OK, but in some sort of reactor type chamber you get better and faster results. Also works for removing copper too. It's the same product used in Cuprasorb. And you can recharge it if you desire using hydrochloric acid.
Do you know what one? Or the MIxed? This is awesome to know!
I like using the color changing resin media that I get from BRS.
Right but do you know if its the Anion Resin or the Cation Resin. Or do you mixed?
I use the mixed.
Sorry, re posted. This is the one: Bulk Deionization Resin (Color Changing) - Bulk Reef Supply
I just use an extra HOB as the chamber. Pack it pretty tightly with the mesh bag full of media.
