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sorry miles i dont get what u mean
Assuming you are talking about tropical fish, do you have the heating set to the same temperature at all times, even during the night and when you are away?I'm relying on a house heater too. It's not right next to the tank, but it keeps the temp warm enough during winter.
How exactly do you think a heater has something to do with the bacteria and fungi in the water?I am still pondering on whether aquarium heaters may actually give harmful bacteria the chance to develop in tanks or that doesn't happen.
/me is really hoping this is not the reason for not using a heaterSo far I haven't had a heater and didn't have ich, or velvet or inflamed gills or finrot or dropsy in all these years. (well, there is a first time for everything).
It depends on the species, what is the catfish? As with guppies, mollies and platys, I would consider the "ideal" temperature for swordtails to be around 19-21 C, and I would feel pretty confident keeping any of the four species (good stock only) in temperatures from around 16 C to about 26 C, while their "can survive in" range is even larger.So I still wonder if I should get a heater for the swordtails and catfish. Will I be doing them a favor or putting them at a risk since they are used to house temp for so long?
Assuming you are talking about tropical fish, do you have the heating set to the same temperature at all times, even during the night and when you are away?I'm relying on a house heater too. It's not right next to the tank, but it keeps the temp warm enough during winter.
How exactly do you think a heater has something to do with the bacteria and fungi in the water?I am still pondering on whether aquarium heaters may actually give harmful bacteria the chance to develop in tanks or that doesn't happen.
/me is really hoping this is not the reason for not using a heaterSo far I haven't had a heater and didn't have ich, or velvet or inflamed gills or finrot or dropsy in all these years. (well, there is a first time for everything).
It depends on the species, what is the catfish? As with guppies, mollies and platys, I would consider the "ideal" temperature for swordtails to be around 19-21 C, and I would feel pretty confident keeping any of the four species (good stock only) in temperatures from around 16 C to about 26 C, while their "can survive in" range is even larger.So I still wonder if I should get a heater for the swordtails and catfish. Will I be doing them a favor or putting them at a risk since they are used to house temp for so long?
In terms of temperature, the most harm can come from fast changes (which affect the temperature itself and other factors such as pH), which is why I use heaters in *all* my tanks (even the ones which I want at 16 or 18 C) as I know that the outdoor temperature here can vary quite a lot between day and night (for example, a couple of days ago we had 19 C during the day and 0 C the same night) and I do not heat my house *all* the time (actually, the thermostat is in a different room from the fish tanks, so it does not keep the temperature steady in the rooms with the fish tanks anyway).
If you get a heater and the water is 16 C when you put it in and you switch it on when it is set to 28 C, this is quite likely to harm the fish. If the tank temperature is at 20 C and you add a heater that is set to 20 C, then only change the temperature by 1 degree per day starting from day 2/3 of having the heater, then this will not harm the fish and is likely to benefit them. Oh, and remember that good circulation is important around the heater, and that the temperature dial may be off from the "real" temperature.
If you have a thermostat, it would still make sense to leave the heating "on" because it should automatically switch off when it's too hot and it is a useful safeguard in case of an unexpected cold spell.The room is heated during the whole winter and spring. When summer comes and heat starts to get to 28 C+, obviously I won't use it.
The bacteria which one would encounter around the house are not the same ones which cause fish diseases, so if the bacteria are in the tank already, then they are in the tank. As for the heater attracting them.. well, if your house is as warm as you say it is, the heater will only be a safeguard in case your central heating breaks and should always be off (it works on a thermostat basis, same as most modern house heating) and the water circulation should be good enough around the heater that the water at the heater should be almost the same temperature as anywhere else in the tank.Seeing as winter might make bacteria seek a very warm place, they could go for the heater and develop there. But I am not sure, might be just a coincidence that I never faced any of those diseases on my fish. And that's not my reason for not using a heater though. I have one, but I'd rather not risk shocking the fish if the cracks in the rubber will let water get through. It's also full of calcareous formations. It was used in my turtle's pond one winter but she never liked sitting in the pond even if she had it warmed up. I'd also prefer to get one that would not allow the fish rest on it and get burnt. This one has no isolation whatsoever and could harm the catfish. I can barely see what its brand is but I think Techmic.
Sorry, I don't know enough about Hoplos to help you ID, but going from what I've read, these guys are also all ok with cooler water, so around 20-22 C should be a good "usual" temperature for the tank. If you can be 100% sure that the temperature in the tank never drops below about 18 C (for the Hoplos), then I would say that you can get away without a heater, but I personally prefer to *always* have one, just in case something does go wrong with the heating or if the water for the water change is a little too cool, etc.The catfish is a 9 year old Hoplo, not sure what kind though. […]
I have total control over the house heater as it is electric. But i'll see if I can get a safe heater so that the hoplo won't do something stupid (like sitting on it).If you have a thermostat, it would still make sense to leave the heating "on" because it should automatically switch off when it's too hot and it is a useful safeguard in case of an unexpected cold spell.The room is heated during the whole winter and spring. When summer comes and heat starts to get to 28 C+, obviously I won't use it.
The bacteria which one would encounter around the house are not the same ones which cause fish diseases, so if the bacteria are in the tank already, then they are in the tank. As for the heater attracting them.. well, if your house is as warm as you say it is, the heater will only be a safeguard in case your central heating breaks and should always be off (it works on a thermostat basis, same as most modern house heating) and the water circulation should be good enough around the heater that the water at the heater should be almost the same temperature as anywhere else in the tank.Seeing as winter might make bacteria seek a very warm place, they could go for the heater and develop there. But I am not sure, might be just a coincidence that I never faced any of those diseases on my fish. And that's not my reason for not using a heater though. I have one, but I'd rather not risk shocking the fish if the cracks in the rubber will let water get through. It's also full of calcareous formations. It was used in my turtle's pond one winter but she never liked sitting in the pond even if she had it warmed up. I'd also prefer to get one that would not allow the fish rest on it and get burnt. This one has no isolation whatsoever and could harm the catfish. I can barely see what its brand is but I think Techmic.
In the hope that I can reassure you a bit: I have been keeping fish since 1995 and have always used heaters. In all these years, I have only seen whitespot once in my own tanks (last year, new blue rams) and finrot only on shop-bought guppies. Diseases have everything to do with the water and the general health of the fish and almost nothing to do with the temperature of the tank. I say almost nothing because bacteria and fungi do better in higher pHs than in lower pHs and temperature can *marginally* affect this. Also, in the last 16/17 years, I have only had two heats break and both of them because I put hot heaters into cold water.
You can remove the mineral deposits by soaking the heater in vinegar, and most modern heaters come with heater guards when one buys them (I use only Visitherm heaters and I can confirm that they are very good quality and reliable). I have never heard of Techmic heaters before and a quick search implies that they may be a little bit dodgy, so if you do go for a new heater, it might be worth paying double for one which is likely to last more that twice as long.
Sorry, I don't know enough about Hoplos to help you ID, but going from what I've read, these guys are also all ok with cooler water, so around 20-22 C should be a good "usual" temperature for the tank. If you can be 100% sure that the temperature in the tank never drops below about 18 C (for the Hoplos), then I would say that you can get away without a heater, but I personally prefer to *always* have one, just in case something does go wrong with the heating or if the water for the water change is a little too cool, etc.The catfish is a 9 year old Hoplo, not sure what kind though. […]