25 Gallon/97 Litre Community tank overstocked?!?!
Hi, I have a 25 gallon/97 litre community tank set up which I am planning to stock in the next couple of months. Would these fish be okay, or would it be overstocked?? It is a fairly well planted tank, with soft to mildy hard water conditions. These are the fish I was thinking of introducing:
6 Panda Corydoras Catfish
6 Neon Tetra
8 Harelquin Rasbora
1 Bolivian Ram Cichlid
1 Honey Gourami
If this would be overstocked would it be a good idea to either replace the Harlequins with another shoal of six tetra species or to just up the neons to 10?
Any advice would be great, thanks!
Welcome to Tropical Fish Keeping forum.:-D
First question, can you give us the numbers for the hardness (GH)? And also the pH (of the tap water)? This will make it easier to suggest fish, as I would make some changes to your list but want to know the numbers first.
I have yet to find out these numbers, I'm just getting a general idea of the compatibility of different fish and how many I can have before I condition the water to the selection of fishes needs. :)
ANALYSIS TYPICAL VALUE UK/EUROPEAN LIMIT UNITS
Hardness Level Hard No Standard Applies
Hardness Clark 16.00 No Standard Applies Degrees Clark
Hardness French 23.00 No Standard Applies French Degrees
Hardness German 13.00 No Standard Applies German Degrees
Aluminium 5.75 200 μgAl/l
Chlorine 0.22 No Standard Applies mg/l
Coliform bacteria 0.00 0 no./100ml
Colour 1.60 20 mg/l Pt/Co
Conductivity 545.33 2500 μS/cm at 20°C
E.coli bacteria 0.00 0 no./100ml
Fluoride 0.07 1.5 mgF/l
Iron 10.00 200 μgFe/l
Manganese 1.80 50 μgMn/l
Nitrate 28.66 50 mgNO3/l
Odour 0.00 Dilution Number
Pesticides 0.00 0.5 μg/l
pH 7.47 6.5 - 9.5 pH Value
Sodium 18.50 200 mgNa/l
Taste 0.00 Dilution Number
Copper 0.02 2.0 mgCu/l
Lead 0.58 25 μgPb/l
Nickel 0.90 20 μgNi/l
Thanks again! :-D
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I'm sorry I misunderstood. Earlier you mentioned your water is soft to mildly hard. Looking at your numbers, your water appears to be very hard. Quite opposite to what I have! I understand cardinals and neons like soft water. Rasboras are very hardy and may be OK here. Folks with more experience will help you better, I'm sure. I am interested too to hear from them :)
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Yes, 13 dGH (the German number) is in the fairly hard range. This article may explain how all this relates:
Our fish profiles give the preferred ranges for each species, you should take a look at those too.
Without any changes, livebearers will fare well. And there are some other fish among the cyprinids, athernids and catfish. Plus the African rift lake cichlids, though a 25g tank is not sufficient for most of these. Several of the characins can adapt.
Extreme soft water fish like cardinals will not have an easy time in hard water. Adjusting the water parameters is possible, not via chemicals but by dilution with pure water (RO, distilled or rainwater works). This is easy enough initially, but obviously weekly water changes have to take this into account too.
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