New member & a new tank - Page 2 - Tropical Fish Keeping - Aquarium fish care and resources
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post #11 of 14 Old 06-03-2012, 02:19 PM
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Originally Posted by TheCat View Post
Well I've just tested the water and I have

GH 180
KH 180
pH 6.5
NO2 0
NO3 20

I'm worried about the hardness of the water. I don't know anything about which tropicals would be able to live in this
Those are interesting numbers, as they relate to each other, and not a problem. The GH at 180ppm is roughly 10 dGH, so in the lower medium-hard range. The pH is slightly acidic. With these, I would suggest what we term soft water forest fish such as many of the characins, cyprinids, anabantids, non-African cichlids, catfish. The GH is not too high for most of these, except some of the rarer wild-caught, but it could be diluted a bit with pure water. The pH would likely lower slightly, also good.

If you did want to go in the opposite direction, say with livebearers, I would raise the pH above 7, close to 8. This could be easily done with some crushed coral gravel in the filter, a couple tablespoons. The GH at 10 is fine, but the acidic pH qwould be detrimental. That's only if you wanted livebearers.

If you check our profiles, second tab from the left in the blue bar across the top of the page, you will find that each contains the preferred water parameters for the species, along with minimum tank sizes, numbers of each species where necessary, compatibility, etc. If you come up with some species and want any clarification, just ask.

Byron.

Byron Hosking, BMus, MA
Vancouver, BC, Canada

The aquarist is one who must learn the ways of the biologist, the chemist, and the veterinarian. [unknown source]

Something we all need to remember: The fish you've acquired was quite happy not being owned by you, minding its own business. If you’re going to take it under your wing then you’re responsible for it. Every aspect of its life is under your control, from water quality and temperature to swimming space. [Nathan Hill in PFK]
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post #12 of 14 Old 06-03-2012, 02:27 PM Thread Starter
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Thanks Byron - I'll have a nosey around
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post #13 of 14 Old 06-07-2012, 06:00 PM Thread Starter
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I thought I'd post a quick update - you've all been so helpfull so far

I've been testing the water daily and things seemed pretty stable but I was worried that I wasn't testing correctly as it seemed too easy to get to this stage so quickly. Anyway, I took a water sample to the fish shop for them to test for me and so I now have 10 Neon Tetras and an upsidedown catfish in the tank.

So far so good. They're all swimming around normally and feeding fine. Temperature and water parameters seem stable. Plants seem to be growing. It's all too good to be true really. I'm watching out for an algal bloom but nothing so far.

Thanks for all the advice so far and the fish profiles have been amazingly helpful. So glad I found this forum!
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post #14 of 14 Old 06-07-2012, 09:19 PM
good for you =)

5x2x2 aro,highfin bat,fei feng,ST,albino tinfoil,c.perch
4x1.5x1.5 planted tetras,harlequins,
otto,WMM,2 types of celebes rainbows,rcs,amano, bamboo,red ramhorns,MTS
3.5x2.5x2 flowerhorn,pleco
3x1.5x1.5 russel's lion,blue cleaner,sixline and leopard wrasse,maroon clown pair,green chromis,scorpion,tiger cowrie,turbo,lyretail anthias,jewel,anemone,star polyp,marbled and giant green mushi,zoa
2x1x1 nano sw shrimps
22 May 2012
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