Tank Size For Breeding Corys

[jayjay]

Inchworm it has been proven there are no 'side effects' for most fish in water up to 100ppm nitrate. I never said there was waste in teh water either did I? Some people don't have water that is perfect out the tap and some have nitrate reading of 80ppm sometimes. After a week that could be over 100ppm, what do you say to them, not all can afford RO water. With that the water could be crystal clear, no uneaten food or anything and the nitrates would still be high.

 

[Inchworm]

Some people don't have water that is perfect out the tap and some have nitrate reading of 80ppm sometimes. After a week that could be over 100ppm, what do you say to them, not all can afford RO water

I would suggest that do not keep fish, jayjay. After all, what is the point of merely having a fish survive? If they are not able to thrive, and it is a constant strugle to keep them alive, why subject them to this kind of life?

In this thread, Sp00ky had been describing the behavior of his very healthy fish, which are kept in excellent conditions. I was just explaining why they were doing so well. If I had let your comment go by without reply, it might have given some members the wrong idea about the proper way to keep fish.

The fact remains that the lower the nitrate reading is, the more healthy the environment is for the fish.

 

[jayjay]

Well you go tell that to the people who carried out these tests to prove high nitrate aren't a main worry. I was stating what has been proven. If you want to let the fish thrive release it in an Amazon tributary, the point is fish don't even have the perfect life in nature, they don't have perfect conditions, they have diseases, they get eaten etc. So by bringing them into a tank are we making their lives easier or harder? We should be making it easier. The best you could do for them would be buy the amazon and kill all their predators do you do it? It's not a constant struggle to keep them alive if you make it easy on yourself, they won't die unless you do something bad, introducing diseased fish, not cleaning the tank, not feeding them etc. Many fish aren't kept in prefect conditions and they are ok, take african rift lake fish that have been kept in pH 7-8 not perfect but they do well, disucs that have been acclimated to higher pH is the same. As for me not keeping fish, well I give my fish great conditions, the best I can provide. So unless you have seen the fry my fish produce or teh condition of my tanks, I believe you shouldn't go around saying things like that.

If you had of left it, you'd of let people know it's ok for their nitrates to be high, I did say it is better for them to be low but it's not essential.

Yes I agree with you but it is not essential.

 

[Sp00ky]

personally, i wouldnt let a fish live in anything about 40ppm NitrAte. And if it did go above that, then i would be looking at doing a couple of water changes a day until they were down below 40ppm.

But thats just me.... i had read somewhere though and i think it was in this months TFH that anything above 80ppm and this will affect the fish. I will see if i can dig it out and quote it for you all.

either way, monitor your stats and keep them as low as possible. If the corys become lethargic and unplayful then you know something isnt right.

 

[andywg]

Inch, I know you are a mod, and have some decent cory experience, but maybe you should read scientific papers before making sweeping statements such as "you shoudln't keep fish" if your nitrates are 80 ppm.

You are wrong about that, jayjay. High nitrates are one of the stress factors that can weaken a fish's immune system and make them more subject to bacterial infections. Since corys live at the bottom, where fish wastes and uneaten food may collect, with the result that harmful bacteria thrive, they are especially prone to bacterial infections. Every effort a fishkeeper makes to make the environment clean and safe for them will be worthwhile.

100 ppm of nitrate is totally out of line.

Some people don't have water that is perfect out the tap and some have nitrate reading of 80ppm sometimes. After a week that could be over 100ppm, what do you say to them, not all can afford RO water

I would suggest that do not keep fish, jayjay. After all, what is the point of merely having a fish survive? If they are not able to thrive, and it is a constant strugle to keep them alive, why subject them to this kind of life?

In this thread, Sp00ky had been describing the behavior of his very healthy fish, which are kept in excellent conditions. I was just explaining why they were doing so well. If I had let your comment go by without reply, it might have given some members the wrong idea about the proper way to keep fish.

The fact remains that the lower the nitrate reading is, the more healthy the environment is for the fish.

The only science I have seen on nitrates is Nitrate toxicity to five species of marine fish by Pierce, RH; Weeks, JM; and Prappas, JM reported in Journal of the World Aquaculture Society. Vol. 24, no. 1, pp. 105-107. 1993 in which it is pointed out that earlier tests have shown that prolonged exposure to nitrates over 100 ppm may be detrimental to fish.

Once one remembers that marine fish are more succeptible to water imperfections such as nitrate as a by-product of their osmo-regulation you can see where Jay is coming from with his 100ppm isn't the worst thing in the world for fish. Add this to the apparanet randomness to most Nitrates test kits and he has a very fair point.

If you have a peer reviewed science paper that says nitrates of less than 100ppm is bad for FW fish, then I will back down and cede to your knowledge, but at the moment it seems that Jay has made comments in-line with current scientific knowledge and you have bashed that down purely from "internet knowledge" which is based in something far from scientific, controlled, peer reviewed papers.

Until you can point to that paper Inch, I believe you have been unkindly harsh on Jay, after all, his opinions are based in science, and yours are based on opinion.

 

[lychas]

i got 2 corydoras similis this morning, will get more once i get a bit more money, they are so cute, how can i sex them? also what ph, temp and hardness do they need?