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Old 05-02-2012, 12:40 AM   #1
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Cichlid Substrate questions

I am working towards putting together a 20 gallon tank. I bought some cichlid substrate (see picture). I plan on keeping a breeding pair of Kribensis in this tank. I also hope to have this be a planted tank.

If the time ever comes that i decide I want different fish (say tetras) will this substrates Ph altering ability be a negative thing for the fish?

Will this substrate cause Ph swings, during pwc?

Thank you for your time and effort!
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Old 05-02-2012, 12:56 AM   #2
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That substrate is for African rift lake (Malawi and Tanganykian) cichlids, Krib's are river fish. They can probably adapt to the water conditions, but it wouldn't be an ideal setup for them.
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Old 05-02-2012, 08:49 AM   #3
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Thank you very much! I will try to return the substrate and get some good ol sand thanks again! (My future kribensis also thank you)
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Old 05-02-2012, 09:02 AM   #4
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ph isnt a huge issue unless its way to one end of the spectrum,or there are rapid changes. but i do agree that sand would be better(and cheaper)
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Old 05-02-2012, 10:29 AM   #5
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No reason to have fluctuations in water levels when it isn't necessary. I am going to get some black PETCO sand. I think it will a) look better b) keep things more stable.
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Old 05-02-2012, 10:32 AM   #6
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You shouldn't need to do anything to get your kribs to thrive/breed. Simply add water. LOL They are almost as bad as guppies.
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Old 05-02-2012, 08:12 PM   #7
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How many pounds of sand will be required for a 20 gallon long tank? 30 inches by 13 inches? I want the sand about 1.5-2 inches thick
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Old 05-02-2012, 09:26 PM   #8
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780 cubic inches. hope that helps
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Old 05-03-2012, 09:33 AM   #9
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Quote:
Originally Posted by fishfanatic View Post
How many pounds of sand will be required for a 20 gallon long tank? 30 inches by 13 inches? I want the sand about 1.5-2 inches thick
I believe I used 40lbs in my 30g long (36x12") and I got about 3" in the back with 1"-1.5" up front.
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Old 05-03-2012, 01:24 PM   #10
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Get yourself a 50 lb bag of black diamond blasting grit for $8 and you'll have enough left over for a 10 gallon shrimp tank. The black substrate really show off the color/s of the fish, and it's completely inert. Won't affect water chemistry or support a diatom bloom for a month or so.
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