My fish Love when i do water changes they love to swim into the water I pour in that is on all my tanks especially my reef tank.
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My fish Love when i do water changes they love to swim into the water I pour in that is on all my tanks especially my reef tank.
no they just swim through the fresh water i pour inHow does one assess if their fish like water changes? Do you ask the fish to fill out a survey?
plus they look happyno they just swim through the fresh water i pour in
Look at it this way at 1 70% you are diluting 70 percent but at 7 10% each change becomes less and less first one is 10 % but then you fill up the 10 % and then remove 10% of the new 100% you have which is really only about a 9% dilution at this point(thats not perfect nor accurate but gives you an idea of what I'm trying to say)and that's after only the second if you go out farther it only gets to be a smaller number each time untill it stabalizes at a certain point higher then the less often 70% given they are done in the same time scedual so 7 10% in 1 month vs 1 70% in one month
the math is to complicated for me to try and post sry wish I could
If there is any debate, then I am against water changes for one simple reason. Every water change uses water beyond auto top off levels and sends old water with all the additional additives down the drain. That seems not very environmentally conscientious. If I can reduce my water consumption and reduce my salt and other chemical pollution, while still maintaining a viable and enjoyable reef tank without water changes, then I help the cause of good husbandry of the earth.
Sure! That is evidence that just that tank works great with water changes under your care! That's the beauty of it all. There are so many ways to get a tank to thrive. No way is "the best" for all. IMO it's more up to the aquarist then the "method" Or to find a method that fits the type of aquarist you are. Test until you find the right way for you.@Sallstrom @Lasse - I have no problem with ICP tests - and using them to guide what trace elements one puts in their tank. I think both of your tanks look great. @Sallstrom said - that his tank is evidence that water changes are 'not necessary' - but then can I make the opposite argument - I have never sent an ICP test, don't dose trace elements - and my tank looks great too (IMHO) lol Therefor ICP tests and trace elements are not needed? @Lasse - I think that adding 'food' of a varied type LIKELY adds enough trace elements - doing regular water changes ensures that they do not rise high enough to cause problems (my opinion) - I guess my point was merely - either method can create tanks that look great - thats why as Revhtree said at the beginning - its an endless debate
Uhh they look kind of happy but my clownfish always look like they are grinningHere is a calculator to do the math. lets assume the starting nitrate is 100 - and you do a 70% water change - and that over a month the nitrate increases by 30. Using a 70% water change up front - at the end of the month the Nitrate would be 60ppm.
Doing 7 10 percent water changes - at the end of the month the nitrate would be approx = 64. So there is not much difference. And this accounts for the accumulation as well.
Note depending on the numbers you use - you can get almost any result - BUT in the end with any regimen - there tends to be a level that the nitrate stabilizes (assuming that the increase of nitrate between water changes remains constant). But your example does show the point - though most people arent doing anywhere near 70% water changes. The issue here is - are regular water changes lets say 5 % per week more beneficial than None - or rare water changes
Effect of Water Changes Calculator
Aquarium calculator; Estimate the effect of repeated water changes on the concentration of a given substance.www.hamzasreef.com
Uhh they look kind of happy but my clownfish always look like they are grinningDo they smile......?
Sincerely Lasse
Good math but that's a 4ppm increase every month and that's where the larger really comes in the long term short term is fine to show quick figures but after 12 months of this thats a 48 ppm overall not good this hobbie is all about long term stability and having such a large amount overall that has to be gotten rid of can lead to problems down the road like gha that wont go away etcHere is a calculator to do the math. lets assume the starting nitrate is 100 - and you do a 70% water change - and that over a month the nitrate increases by 30. Using a 70% water change up front - at the end of the month the Nitrate would be 60ppm.
Doing 7 10 percent water changes - at the end of the month the nitrate would be approx = 64. So there is not much difference. And this accounts for the accumulation as well.
Note depending on the numbers you use - you can get almost any result - BUT in the end with any regimen - there tends to be a level that the nitrate stabilizes (assuming that the increase of nitrate between water changes remains constant). But your example does show the point - though most people arent doing anywhere near 70% water changes. The issue here is - are regular water changes lets say 5 % per week more beneficial than None - or rare water changes
Effect of Water Changes Calculator
Aquarium calculator; Estimate the effect of repeated water changes on the concentration of a given substance.www.hamzasreef.com
Are water changes a thing of the past or of the present?
Do water changes, don't do water changes? The debate will last F O R E V E R!!
So why not continue it today! Well things change, methods change, people change, systems change and what is 2020 telling us, besides it's a crazy year, about changing out your water in your saltwater reef aquarium?
This paragraph from @Randy Holmes-Farley makes it as clear as mud but is so truthful! HA!
So in light of this brand new discussion topic of water changes let's dig in and talk about it! It's 2020 and has your feelings changed about water changes?
1. YES water changes are beneficial or NO water changes are not beneficial to a reef aquarium?
Let's go a step further....
2. YES water changes are necessary or NO water changes are not necessary for long term health of a reef aquarium?
3. Do you perform regular water changes on your reef aquarium?
[/QUOTE
As far as I k ow all you can do js go in edit it to say removedCan somebody please tell me how to delete this post ?
This does remind me of hydroponics a lot. You create coral with nothing but sal
In hydroponics, you grow plants from LED, water and salts, no soil/substrate. This new technique of no water change reminds me of that husbandry, adding salts to replenish key nutrients, same concept.
Depending on the size of your reef, it makes financial sense to forgo water changes in exchange for periodic ICP testing and dosing. I save a few hundred dollars a year by using less DI resin, lower water bill, less salt, less energy (pre-heat/mix). I say cutoff for savings maybe around 240G+ in size. A 1000G reef would save big time. I think it's plenty safe if you run carbon, skim and maybe algae turf scrubber for exporting the organics you worry about. I have had no issue in 2 years and counting, but had tons of issues with my 240G SPS reef 15 years ago. Times have changed, more options exist.
I think you misread the calculator/my meaning. The way to use it - is to put in your tank volume, then pick the water change volume that is required to bring your nitrate to whatever your acceptable level is. If you, for example - put in 100 gallon tank, 20 gallon water changes for 50 periods (whether 1 or 2 weeks or whatever) - and the Nitrate increases by 5 ppm each period - your nitrate will keep increasing - until about Period 7 - from then on - until Period 50 - it will slowly rise to 20 - and remain there. It doesnt 'keep going up'Good math but that's a 4ppm increase every month and that's where the larger really comes in the long term short term is fine to show quick figures but after 12 months of this thats a 48 ppm overall not good this hobbie is all about long term stability and having such a large amount overall that has to be gotten rid of can lead to problems down the road like gha that wont go away etc