How High Salinity Can Bbgs Be Kept In?

[lesleyanndunn]

i have 3 bbgs with a 2" gsp in a 130litre tank for the last 5-6 months
all are doing well and thriving
they are currently at 1.010 sg
using marine salt etc in water changes
its a long term question.
how high a salinity can bbgs thrive in before it becomes too high for them?
i know the gsp will need high end to marine sg as he gets older.

 

[nmonks]

BBGs will do well in either freshwater or up to SG 1.010. There's no need to take them any higher, and since some species occur primarily in freshwater -- even blackwater -- habitats, doing so would be unwise.

GSPs do not need a marine salinity. That's a myth. It does seem to be true that [under lab conditions] sperm motility is greatest in seawater, so they may well spawn in the sea, though as yet no-one has ever seen them in the sea. But under aquarium conditions they can have long and happy lives anywhere between SG 1.005 and 1.025.

The reason seawater is frequently advocated is more to to with [a] the use of live rock for nitrate removal; the use of protein skimmers; and [c] the success with which GSPs and damselfish appear to coexist in mixed-species settings.

In any case, GSPs will view BBGs as food once they're big enough, so there's no need to adapt the BBGs to seawater.

Cheers, Neale

i have 3 bbgs with a 2" gsp in a 130litre tank for the last 5-6 months
all are doing well and thriving
they are currently at 1.010 sg
using marine salt etc in water changes
its a long term question.
how high a salinity can bbgs thrive in before it becomes too high for them?
i know the gsp will need high end to marine sg as he gets older.

 

[lesleyanndunn]

thanks neale
so keeping them at 1.010 until the gsp grows is fine, thats good to hear
i will put the bbgs in with a fig8 then. or find an alternative!

 

[nmonks]

Glad to help.

Cheers, Neale

thanks neale
so keeping them at 1.010 until the gsp grows is fine, thats good to hear
i will put the bbgs in with a fig8 then. or find an alternative!