QT tank size for fallow period

[GK805Ojai]

Somehow ich has found it's way into my reef tank. I should be able to catch the fish for QT with copper but I only have a 29 gallon tank to work with. Currently I have two wrasse (yellow coris and blue star leopard) approx 3.5 inches, Starry Blenny approx. 3 inches, small royal gramma, neon goby, and a yellow nose high fin shrimp goby. Is the 29 gallon going to be too small for all the fish during the fallow period? My current tank is a 40 gallon 36x15x17 and holds about 30 gallons of water. I do plan to add sand to the QT for the wrasses and some pvc for the other fish. I also have a 10 gallon tank available. Would it be better to put just the wrasses and maybe the blenny in the 29 and the 2 gobies and royal gramma in the 10? Any advice on how to handle this would be greatly appreciated.

 

[EeyoreIsMySpiritAnimal]

Are you planning to medicate the fish? If so, don't add sand (or rock).
*Edit: see next post

If you're not planning to medicate, then the fish will continue to have ich...

 

[Sharkbait19]

If it were me, I’d split them into two tanks - you’d avoid potential aggression and overstocking better that way.
As for sand, make sure it’s non-calcerous sand to avoid it soaking up copper.

 

[TheFunnyFarm]

Perhaps pickup another 10gal if possible to be covered in case you run into a spat of aggression. I believe Petco is still running their 50% off sale.

Also a Hanna checker for monitoring copper levels is crucial.

 

[GK805Ojai]

If it were me, I’d split them into two tanks - you’d avoid potential aggression and overstocking better that way.
As for sand, make sure it’s non-calcerous sand to avoid it soaking up copper.

Thank you, that's what I figured. As to the sand, both wrasses will be super stressed without it. I know it will absorb the copper so I would dispose of the sand after the fallow period.

 

[Sharkbait19]

Keep a close eye on copper levels - if they dip too low then you would have to restart.
If possible, try to use a silica based sand (often the type used in fw tanks).