Posted 09 January 2012 - 09:40 AM
Since getting the tank I have been researching and reading, watching youtube videos of various tanks and types of fish, schooling patterns, examining patterns on fish themselves. Comparing temperature/tank size needs, studying how to cycle a tank... you name it, I've been looking into it.
I've somehow been drawn to cories, and since it's not a huge tank I've been looking into the smaller ones. The c. habrosus in particular. They are cute, and I think 7 or 8 of them would be lively and a happy little shoal.
I also really have an attraction to guppies, they are very colorful and move so gracefully. I'm not too concerned with fry, from what I've read the guppies will likely eat most of them, and it seems like the cories probably would, too? If one or two make it to adulthood, woo hoo for him/her, right? I'd have to call the survivor Darwin.
I suppose my question is, would a tank like this work? Do guppies require a lot of plant cover? It seems (I think?) the cories would dig up plants if I put too many in there, and I want plenty of ground space for them to do their cory thing. I was thinking a few plants in the back and along the sides, caves for cover, sand substrate to keep the corys happy... If the guppies want more cover, maybe some floating plants? Or plants attached to the tops of the caves?
Thoughts/suggestions? Thanks in advance!
Posted 09 January 2012 - 11:11 AM
One potential issue I see with this combination of fish is that cories like soft acidic water, whereas guppies prefer hard alkaline water. A neutral pH should be suitable for both, though.
Posted 09 January 2012 - 11:47 AM
I suppose my first step should be getting myself a good test kit and finding out what kind of water comes out of my tap, and see if it's suitable for either of them, since I'm far too inexperienced to be messing with pH. I read the water quality report our city sent out not too long ago, but can't remember the particulars. I'm sure I have it around somewhere.
Is there a cute lil fishie better suited to the soft acidic water the corys prefer?
Posted 09 January 2012 - 12:00 PM
Posted 09 January 2012 - 12:04 PM
ETA: Yeah, if you want to keep soft water species you would need to mix your tap with RO water to bring down the hardness. On the other hand, that's great for guppies
Posted 09 January 2012 - 01:30 PM
I do love the guppies! And I've been eyeing the rams and kribs... hmm.
Back to the drawing board.
Thanks for your help!
Posted 16 January 2012 - 02:35 PM
A fantastic companion to corydoras are small rasboras (like harlequins). Harlequins tend to stick to the upper regions of the tank, and cories like the bottom. A temp of around 75*F should be good for both species. Cories appreciate a bit of current, and absolutely use sand for substrate: you'll want something with small, rounded grains that do not vary a lot in size. I use playsand or "silica sand" from Menards. "Moonlight" sand from Caribsea is also nice, but quite expensive when compared to a bag of playsand.
I keep all my cories in planted tanks, and they do quite well. I am limited on the plants I keep, however, because cories need a shallow sand substrate (about 2-3 cm thick) to keep toxic gas pockets from building.
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