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Rain water is it good or bad for fish ?


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I have always wondered if saving rain water was good or bad for fish 
I save it to water my dogs, but to put in a aquarium I'm not too sure 
I'm thinking if I was to like put it in a 10 gal aquarium to filter it OR
just pour it over a fiber fill cloth to take the debris out of it will work ?

With what fish I have (not many) would they benefit from it at all 
or do anything to disrupt the aquarium, I use aqua safe regularly
when I do a water change or top off the water level, will that help ?
I know that rain water helps the water in the wild but what about 
fish aquariums that's a little different than the wild water ways.

I wouldn't use a lot cause it would probably turn my water the 
same color as what the rain water is & it may stress the fish so 
if any 1 uses rain water maybe you could fill me in on the way 
you do yours or just use it without filtering it, give me some tips.

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I don't know for sure because I live in the Desert of Nevada (I forgot what rain looks like). But fish in nature seem to like rain water. I think as long as you can consistently collect enough for water changes, then it should be an excellent source of clean soft water for your aquarium. I have heard that many people use rain water to get their corydoras to spawn.

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It bears mentioningthat rain water is very soft much like distilled or dehumidifier condensate.

 

Not an issue for topping off evaporative loss, but will alter hardness if waterchanging with it.

Also worth mentioning is collection means.  If collecting from gutter downspout, it could pick up parasites from any animal droppings on your roof.

The thought that fish in lakes and streams like t just fine is not terribly an apples to oranges comparison with aquariums.  A 10 inch rainstorm is a deluge, but the amount in comparison to even a lake with average depth of 40 feet is tiny compared to even a 25% waterchange in an aquarium.  And lakes get much more water from run off and streams rather than direct precipitation on the water surface.  The water starts picking up minerals as soon as it hits the ground…

 

is it good or bad in an aquarium?  Well, it depends on a lot of things

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Hum ? "Well, it depends on a lot of things" My water is 
hard as a rock for 1 & yes my rain Water is from my roof
I have liquid carbon I can put in the aquarium if that helps
I wouldn't do a full water change but maybe a top off.

On 4/8/2023 at 1:52 PM, Tommy Vercetti said:

I don't know for sure because I live in the Desert of Nevada (I forgot what rain looks like). But fish in nature seem to like rain water. I think as long as you can consistently collect enough for water changes, then it should be an excellent source of clean soft water for your aquarium. I have heard that many people use rain water to get their corydoras to spawn.

My albinos spawn just for the fun of it ha ha ha their 
always spawning, I'd be dead if I spawned like they do.

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On 4/8/2023 at 2:08 PM, Lennie said:

Check this out! 

 

I watched the video & yes he made some interesting points using it 
but I'm not fully convinced that's with all rain water specially if 
you filter it right, but Thank You for the response & video.

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On 4/8/2023 at 10:00 PM, Flying fox 6523 said:

I watched the video & yes he made some interesting points using it 
but I'm not fully convinced that's with all rain water specially if 
you filter it right, but Thank You for the response & video.

Besides his fishkeeping experience, Jason is a biologist, has a masters degree in biotechnology and chemical science and also has studied aquaculture and fish health. So when the stuff gets a bit technical, I like hearing his perspective. That's why I wanted to share with you 🙂 

I am not sure it seems worthy to be honest. Even the potential parasite issue alone would be a dealbreaker for me. 

You will make the best decision yourself with enough research. Maybe someone with an experience may help here, but everyone's setup and water on hand will differ a lot I bet.

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On 4/8/2023 at 3:10 PM, Lennie said:

Besides his fishkeeping experience, Jason is a biologist, has a masters degree in biotechnology and chemical science and also has studied aquaculture and fish health. So when the stuff gets a bit technical, I like hearing his perspective. That's why I wanted to share with you 🙂 

I am not sure it seems worthy to be honest. Even the potential parasite issue alone would be a dealbreaker for me. 

You will make the best decision yourself with enough research. Maybe someone with an experience may help here, but everyone's setup and water on hand will differ a lot I bet.

Yea I watch a lot of his videos on stuff & your right, everyone's 
setup and water different, but putting like 2-3 gals of rain water 
after putting aqua safe & carbon in it & filter it should be o.k.

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On 4/8/2023 at 10:22 PM, Flying fox 6523 said:

Yea I watch a lot of his videos on stuff & your right, everyone's 
setup and water different, but putting like 2-3 gals of rain water 
after putting aqua safe & carbon in it & filter it should be o.k.

None of those would kill potential parasites or diseases tho, if I am not mistaken.

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My thought of the idea was when I use to raise guppies 
I would do their tanks with rain water & I started with 8
guppies & within a year I was SWAPPED with them, I ended 
up with 3-55 gal full & a 110 gal  stock tank full, along with 
a 20 long & 30 long gal, So apparently they did super.

BUT, I was more thinking about the plant's I have going now 
if it would help them, being I have such a high quality of hard 
water, the rain water would lower the hardness wouldn't it ?

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Be aware your proximity to cities with heavy air pollution may not be a good place to collect rain water. Government websites have a good index for this if you are unsure. 
 

I am not entirely sure you have to worry about potential viral and bacterial outbreaks. Our guts are quite a bit different then fish guts and our sensitivity to certain bacteria and viruses outbreaks is quite a bit higher in that regard. If you were really worried about it UV sterilization would work fine. 

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On 4/8/2023 at 6:00 PM, Biotope Biologist said:

Be aware your proximity to cities with heavy air pollution may not be a good place to collect rain water. Government websites have a good index for this if you are unsure. 
 

I am not entirely sure you have to worry about potential viral and bacterial outbreaks. Our guts are quite a bit different then fish guts and our sensitivity to certain bacteria and viruses outbreaks is quite a bit higher in that regard. If you were really worried about it UV sterilization would work fine. 

I live in the suburbs way away from any city life, the rain water 
I collect is off my roof there's no chance for harsh chemicals
I've been collecting it for my dogs drinking water & every now 
then (not very often) I'd drop about 2-6 gals in the 75 gal aquarium.

Once a month & so far things look good, plant's are growing, fish 
are swimming eating, My Cory's  they breed like none stop it seems
so apparently it  seems like everything is pretty good that I can see.

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