The brigittae/merah hybrids are documented as being sterile- but they can reproduce together.
Also, merah and brigittae overlap geographically and some mimicry has been observed, also, there are possible 'undescribed' species in these collection zones.
In short, its a mess.
Its laugh out loud bad.
Not even the great keV spacey can redeem the utterly diobiolical script and story with his comical overacting.
The chief of staff, off out in the countryside , running people over.
The presidents of Russia and America choosing to meet in the centre of a war zone to...
I did recommend Maidenhead aquatics wimborne, but for the last year it's been one big tank of death.
Multiple dead fish, often in the same tank.
Filthy substrates and glass.
Their r/o water was a disgrace at 130+ppm.
Co2 bubbles will diffuse in the water or reach the surface and be lost.
So, you want the co2 bubbles to be suspended in the water for as long as possible or use a co2 reactor - these diffuse the co2 completely.