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Masala Masala
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  • Posted on: 12/2/2006 22:12
How many fish? #1
Good evening

I'm in the process of deciding which tank to buy but need a wee bit of advice if that's possible please. I'm thinking of going for a Juwel Trigon 190 but because of the shape I can't work out what the optimum number of fish (or more appropriately total fish length) would be.

Is there anyone out there with one of these tanks and can you help with the calculations for working out how many fish?

TIA
BlackPhantom BlackPhantom
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  • Posted on: 12/2/2006 22:31
Re: How many fish? #2
The usual formula for tropicals is 1" of fish per gallon of water. Is the tank 190ltrs.? If so 190/4.5(ltrs. per gal.)= 42.22, so a maximum of 42 fish. That's one inch fish, the bigger the fish the smaller the number. A lot depends on the size and type of filter you intend to use.
In general, the bigger, the better.
I think there's something fishy about this site.
rik200877 rik200877
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  • Posted on: 12/2/2006 22:33
Re: How many fish? #3
hi masala and welcome to the site

the general rule is 1 inch of fish per gallon of water

a 190 litre tank would be roughly 42 gallon

dont forget you will have to cycle your tank first i hope this link helps


http://freshaquarium.about.com/cs/bio ... cycle/a/nitrogencycle.htm
so much to learn!!!
BlackPhantom BlackPhantom
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  • Posted on: 12/2/2006 22:40
Re: How many fish? #4
Just found Trigon 190 on a site and see it's a quadrant corner unit and comes with it's own filter system. That's fine, you could always add additional filtration if required.
I think there's something fishy about this site.
Fishy-Fishy Fishy-Fishy
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  • Posted on: 12/2/2006 22:40
Re: How many fish? #5
HI masala, welcome
You've already been given some sound advice, 1" per gallon for small-medium tropical fish is about right, but if you tell us what fish you plan on keeping we can advise you a bit better.
Please consider doing a fish-free cycle, it is much kinder to the fish
Anything else you need to know, please don't hesitate to ask.
Masala Masala
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  • Posted on: 12/2/2006 23:24
Re: How many fish? #6
Thanks for all of the prompt replies, it's appreciated!

We've now spent the evening rearranging our living room and have found space (if we need it) for a rectangular tank. Are there any advantages/disadvantages to having a rectangular tank versus a corner tank?

Also is there anything to beware of if we go for a second hand tank?

Can't say what fish we're thinking of getting yet - is it vitally important to decide if you're having say an Amazonian or Lake Malawi set up? Or can you do a general set up with fish you like??

Thanks again for all the help for these novices!
rik200877 rik200877
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Re: How many fish? #7
a rectangle tank is better as there is greater surface space and you dont have a distorted view

if you are having a second hand tank make sure that it is water tight

cichlids do not mix in a community setup
so much to learn!!!
voycey voycey
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  • Posted on: 13/2/2006 10:42
Re: How many fish? #8
cichlids do well in a species only tank. There are a couple that mix but they look a lot nice in their own tank setting up territories etc :)

The main consideration would be temperature and water chemistry - e.g ph and hardness when it comes to cichlids :)

Fishy-Fishy Fishy-Fishy
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Re: How many fish? #9
Yeah, best not to mix your cichlids. You can keep several different cichlids, as long as they are found in the wild living together it should be OK.
CassieXoX CassieXoX
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Re: How many fish? #10
Can someone advise me please?

I have 190 litre tank, we got it for my 6 year old son, he is autistic & absolutely loves fish!

Already in it we have 4 platys, 4 Dalmatian mollies & 6 dwarf rainbow fish. We are looking to add 4 dwarf gouramis & 2 small angels. Does anyone know if the tank is big enough to add the additional fish? For how big the tank is there doesn’t look like there is much in it just now.

Thank you for any comments or advice.