Can Blind Cave Tetras live in stagnant water?

  • We are currently upgrading MFK. thanks! -neo
youre gonna have to oxygenate manually probably at least daily water changes, until you put a filter on or at the very least toss an air stone in, probably do a google search for low oxygen in aquariums so you know what the warning signs are
Also I’ve been doing research on this too and it says that they can often be found in undisturbed stagnant water and that most tetras in general are often found in habitats (such as blackwater) were oxygen levels are usually low
 
The Cenotes where I've seen Astyanax from, are not stagnant bodies if water.
Upwelling from underground aquifers provide constant flow and oxygenation.
I have dove in many and at times, the flow rates where quite strong,
In some open cenotes, I had to hold on to mangrove roots to keep from being pushed out to sea, and in some it felt as if 100% of the water was being exchanged every moment.
 
That is the coolest little fish i have ever saw i have a 36 gallon bowfront empty i see them for sale 3 for $25 I'm going to get 6 of them.
Logan i know you just got beat up a little bit about the care of you Blind Tetras but thank you for putting me on to these
 
I’m may try to get a small pump or use a portable aerator during parts of the day. The other stocking in the tank are a guppy and rosy minnow that were used as testers to make sure water is safe from spray foam and without flow they are doing good but I am going to move them back eventually.
 
Also I’ve been doing research on this too and it says that they can often be found in undisturbed stagnant water and that most tetras in general are often found in habitats (such as blackwater) were oxygen levels are usually low

Thats great but your fish are captive bred, not collected in the wild, they dont go through wet and dry periods in captivity.

Youre gonna wanna make sure you keep up with water changes until you figure out how to get some water movement going, cave tetras dont need much but a tiny bit of water movement helps promote gas exchange, if you feel like grabbing a spoon and stirring the tank for 5 mins every hour go for it, until that point and until you remove any living organisms from the tank keep up with the water changes.
 
Update: I actually found an extra aerator and tubing and things for oxygenation to no more need to discuss stagnant water at the moment. Although I did want to know what to and how to feed cave tetras.
 
My brother had one years ago in a community tank, it definitely did not need any extra help and was the fattest fish in the tank
 
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