Freshwater, brackish or either - Aquarium Advice

fish_4_all · 05-20-2005, 03:46 PM

Well here is the post as promised.

First of all, mollies do well in any water type. I have raised them in purely fresh water in the past and they thrived and multiplied. I have also had them in brackish water, well it was 1 tablespoon per 10 gallons but it had salt in it.

Remember, this is freshwater species only, not saltwater species.

The question is:
Is there a truely freshwater fish that will not survive in salted, brackish water?
Is there a truely brachish fish that will not survive if there is no salt in their water?

Blucat · 05-20-2005, 06:37 PM

Yes there is. I don't think you could move a freshwater angel to a brackish tank. And I don't think you c ould move a brackish puffer to a freshwater tank.

j_randall1702 · 05-21-2005, 12:04 AM

I am sure that hardiness of a fish depends that.

05-21-2005, 12:07 AM

Quote:

Originally Posted by j_randall1702

I am sure that hardiness of a fish depends that.

Exactly, a lot of hardy [acronym:616357457d="Freshwater"]FW[/acronym:616357457d] fish can live in brackish conditions, but not comfortably. Likewise the other way around I'm sure is true also. But why would you ever want to do that?

hashbaz · 05-21-2005, 02:19 AM

There are lots of fish that can survive in multiple environment types (salt, fresh, or brackish) but these are usually fish that spend different parts of their lives in different types of water in the wild.

And then there are a few really tough fish, like mollies, that don't care where they are.

05-20-2005, 03:46 PM	#1
fish_4_all Aquarium Advice Addict Join Date: Mar 2005 Location: Aberdeen, WA Posts: 1,809 Images: 4	Freshwater, brackish or either Well here is the post as promised. First of all, mollies do well in any water type. I have raised them in purely fresh water in the past and they thrived and multiplied. I have also had them in brackish water, well it was 1 tablespoon per 10 gallons but it had salt in it. Remember, this is freshwater species only, not saltwater species. The question is: Is there a truely freshwater fish that will not survive in salted, brackish water? Is there a truely brachish fish that will not survive if there is no salt in their water?

05-21-2005, 12:04 AM	#3
j_randall1702 Aquarium Advice Regular Join Date: Apr 2005 Location: Limestone TN Posts: 87 Images: 1	I am sure that hardiness of a fish depends that. __________________ 193 [acronym:e158cc8d92="Gallon"]gal[/acronym:e158cc8d92], with 200 lbs sand and driftwood setup 2 Tiger oscars 2 Clown loaches 1 pleco 1 pictus cat 75gal- Driftwood setup, with 50lbs gravel 25lbs of sand 2 Bluegill sunfish 6 minnows 29-Driftwood setup 30 lbs of gravel 4 Zebra Danios 3 Neons 2 Swordtails 2 Black Mollies 10 [acronym:e158cc8d92="Gallon"]gal[/acronym:e158cc8d92] Driftwood setup with 10 lbs of gravel 1 Dalmation mollies 1 Rubberlipped pleco 1 Butterfly loach 1 Dwarf gourami 2 Panda Corys

05-21-2005, 02:19 AM	#5
hashbaz Aquarium Advice FINatic Join Date: Feb 2004 Location: Utah, USA Posts: 745 Images: 1	There are lots of fish that can survive in multiple environment types (salt, fresh, or brackish) but these are usually fish that spend different parts of their lives in different types of water in the wild. And then there are a few really tough fish, like mollies, that don't care where they are. __________________ link to 75 gallon planted 10 & 29 gal QT/nursery/undecided

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05-20-2005, 06:37 PM	#2
Blucat Aquarium Advice FINatic Join Date: Jan 2005 Location: Australia Posts: 834 Images: 5	Yes there is. I don't think you could move a freshwater angel to a brackish tank. And I don't think you c ould move a brackish puffer to a freshwater tank.