Can Corydoras Or Kuhli Loaches Ruin My Substrate Design? - The Planted Tank Forum
 
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post #1 of 5 (permalink) Old 05-06-2019, 07:54 AM Thread Starter
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Can Corydoras Or Kuhli Loaches Ruin My Substrate Design?

Hi guys!

So I'm nearing the end of my cycle and am starting to think about my stocking options and I'm considering keeping 6 Panda Corydoras or possibly even Kuhl Loaches among other fish in my 125L (33 Gal) Tank (81cmx50cmx36cm).

As you can see, my tank is mid-heavily planted, but more importantly, I have designed my substrate such that there is a bed of white sand acting as a, admittedly dirty, "river" separating my main substrate (ADA Amazonia II).

My question is this: Will the digging nature of Corydoras or Kuhli Loaches ruin my substrate design? The ADA Amazonia Aquasoil is incredibly loose and even a little bit of digging can create a mess.

I'd really appreciate some insight on this guys, thanks!
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post #2 of 5 (permalink) Old 05-07-2019, 04:11 AM
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Dont have loaches but have 6 false juliis. The corys will root around and leave little dimple marks in the sand but in my experience thats about it. Think of it like sticking your pinky a 1/4" into the sand. Mine have not uprooted any of my plants although they like to forage in them and go up on the leaves and nibble around looking for food.
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post #3 of 5 (permalink) Old 05-07-2019, 07:29 AM
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My corys have never uprooted plants but I don't imagine a river of sand would stay intact for very long unfortunately. No experience with kuhli loaches, but I believe they burrow so might not be the best idea either. You can always just replace the sand with each water change though?

How smooth is the soil? Both species require small-grained, smooth substrate, and anything sharp can damage their bellies/barbels/gills.

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post #4 of 5 (permalink) Old 05-07-2019, 07:39 AM
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I have panda cory's and they don't disturb anything.
Minimal aggitation, a larger Cory may stir things up.


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Growing is not that difficult.
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post #5 of 5 (permalink) Old 05-07-2019, 11:09 AM
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I have a similar setup, my pygmy Cory's were fine. My plecs however destroyed it over night lol

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