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I am currently breeding mollies as a food supplement for my salt water lion fish, as such they are kept in a low brackish tank. Does anyone know of a catfish that can tolerate high ph and salty conditions. Also non- predatory. I think some of the synos might work, but any info is helpful. Tx

29 gallon tank, ph stays around 7.8, salinity is roughly 10%, live plants are still living.

Catfish are primarily sweet water fish, only the Aridae live in sea/brackish water. But these grow far too large. Further yoou will not want a catfish with any predatory inclination.

Any fish you would add to this tank will a) be a risk for the fry and b) by polluting the water reduce the crop you want - fry of a certain size.

You best keep this a species tank

In addition, rare eel-tail, banjo and woodcats live in brackish water, but are all near impossible to find. All but the banjos would eat molly fry. If you lose the salinty, but keep the water hardness there are more options.

I've seen common plecos kept in low salinity water, but I can't think they'd be very comfortable.

But, why would you want a catfish in a molly breeding tank?

Cheers,

Jools

I just like catfish, I’ve been out of the hobby for over a decade, and I only know what I knew. I currently only have the fowlr tank, an a specimen tank with what used to be called megalodoras irwini. Not sure if the current nomenclature.

I was thinking that maybe a syno might work. Again, if I decrease the salt. Maybe an upside down? I’m not really familiar with African cats.

If there's no salt, and it's just hard water then any of the Lake Synos would work. I'd avoid smaller jungle or river synos becuase of the hard water, but several hardy larger species would also work.

Cheers,

Jools

The problem is, Poecilia (black molly) is tolerant for salt, but they do need time to adapt. Therefore, remouving the salt might result in dead Poecilia - which may not be eaten.