Substrate for Corys - Tropical Fish Keeping - Aquarium fish care and resources
  • 1 Post By jaysee
LinkBack Thread Tools
post #1 of 3 Old 01-10-2017, 07:11 PM Thread Starter
New Member
Substrate for Corys

Hey guys, I should decide what kind of substrate put above my fertilized substrate Dennerle Deponitmix. I was thinking about having Corys in my tank, so I think that sand or fine gravel should be ideal.

Actually I'm quite worried about sand (although it would be the best for corys) because of its hard mainentenace but, most important, because of the risk of creating anaerobic zones.

I would chose the third substrate from the left in the photo attached. The producer labels it as 0,7-1,2mm gravel. Would it be fine for Corys? Is it big enough to avoid risk of anaerobic zones?
Attached Images
File Type: jpg IMG_20170110_004220.jpg (43.8 KB, 7 views)
Dan89 is offline  
Sponsored Links
post #2 of 3 Old 01-11-2017, 12:31 AM
aussieJJDude's Avatar
Sand is easier than you think, have you tried it before? I've been a semi long time convert to sand after having gravel all my life, and the upkeep is super easy. I currently have a sand and gravel mix and looking to totally change that out and just go 100% sand. With sand, maintenance is easy, as the detritus stays on the top. Instead of a usual vacuum, the siphon is required to lightly skim over the surface of the sand and the "crap" should be picked up. It justs a little to get use to, but once you're accustomed to sand, maintenance is far less laboursome than gravel. and half of the time, since the detritus stays on the surface, most of it gets sweeped into the filter leaving a easy clean - most of the wanted bits are in the one place, the filter - instead of doing to usual monthly clean of the filter and then on top, weekly gravel cleans.
As long as you have a sand shifter - aka: cories, loaches, MTS shrimp even - the sand will stay rotated and anaerobic zones will not develop. If not, a simple chopstick or fork and raking it through the sand every few weeks will keep it from going bad.

The only pain about sand is the first clean, it takes for ages - unless you use pool filter sand. Some recommend placing the sand in a disused pillow case and letting the water flush out. I've done this method, and find that it works great:
Easy to use, and quick too! Works with play sand, which what I have.
Sand is inert though, but since its a cap, it would b fine to use with plants. I've had better growth with sand then I have had with gravel - pea sized and smaller.

So i go number 4 as my top pick!

540L/140G - 'Tidal Jungle' (Crabs) | 254L/67g - 'Backwater Pool' (Fish/Snails) | 96L/25G - ''Twisted Minds" (Fish/Snails)

I've never had any problems with 'Impulse Buying'. They're just animals that I forgot I had planned to get.
aussieJJDude is offline  
post #3 of 3 Old 01-11-2017, 01:34 AM
jaysee's Avatar
In all my years and all my tanks, I've found sand to be maintenance free. You should definitely wash pool filter sand - I've never used one that was clean. "Washed" means it's pool filter ready, not aquarium ready.

The risk of gas pockets is a theoretical one. What I mean by that is it's a problem that everyone warns about yet no one experiences. Maybe that's the one problem in the hobby that everyone manages to avoid. Or maybe it's just not a threat in practice.

Biggest risk with sand is fouling an HOB filters motor. There are steps you can take to minimize that, but if you have a canister you don't have to worry at all. I keep my filter intakes an inch from the sand, and they do a good job of sucking up the waste. And what the filters don't get the trumpet snails take care of. I honestly don't vacuum more than a couple times a year, but I take a more laissez faire approach to fish keeping. Some people like to be hands on. That's the beauty of a hobby

I like your choice for the sand Dan.
aussieJJDude likes this.

125 - BGK, chanchito cichlid, pictus cats, silver dollars, palmas bichir
125 - cichlids (severums, bolivian rams, chocolate), rainbows ( turquoise, red), loaches (angelicus, zebra, kuhli and horseface), plecos (BN, RL and clown), denison barbs, tiretrack eel, pearl gouramis, betta
90 - Congo tetras, african knife, upside down cats, spotted ctenopoma, kribensis, delhezzi bichir
2.5 - betta
jaysee is offline  

Thread Tools
Show Printable Version Show Printable Version
Email this Page Email this Page

Similar Threads
Thread Thread Starter Forum Replies Last Post
Sand as Substrate for Corys and Rasboras eaturbyfill Beginner Freshwater Aquarium 12 06-29-2012 12:08 PM
sterba's corys vs. peppered/bronze corys? dorabaker Catfish 2 07-11-2011 09:16 PM
Best substrate for Corys Coryguy01 Beginner Freshwater Aquarium 6 12-31-2010 09:03 AM
Substrate for Corys & Live Plants aqua_SD Beginner Freshwater Aquarium 4 07-28-2008 04:14 PM
Substrate for Corys & Live Plants aqua_SD Beginner Planted Aquarium 2 07-28-2008 10:37 AM

Posting Rules  
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On

For the best viewing experience please update your browser to Google Chrome