joesandy1822 said:
We finished digging our pond and filled it with water about 2 1/2 weeks ago. It's 3,000 gallons. The bio filter is a large filter falls unit. The media I'm using is one Matala pad, some green scrubbies, some plastic poultry fencing, and some tulle (netting). We have a skimmer. About a week ago I stocked the pond with 25 small comet goldfish and 9 small shubunkins. The pond turned to pea soup about 4 days ago. It is in full sun a good part of the day, but towards late afternoon and evening, it gets about 70% shade from tree cover. 1) I have 5 potted water lilies (still fairly new), one parrot feather, one cattail, one water clover, 10 very small hyacinths, a pickerel weed, a new clump of sweet flag, and about 30 submerged bunches of hornwort. Since I've added the fish, I've lost a significant number of the goldfish. The shubunkins seem fine.
2) I tested the water this afternoon. The pH was 8.4, ammonia 0, nitrites 0, and nitrates 0. Am I understanding correctly that since I see no reading on any of these elements, my biofilter has not kicked in AT ALL yet? 3) I know this is a very low stocking level for 3,000 gallons, but I would think by now I would see something reading above 0. 4) I've lost about 8 or 10 goldfish so far, and they seemed healthy enough when I put them in. So I'm trying to understand the reason for the fish deaths. Again, the shubunkins are still ok.
One thing I did not do (maybe a newbie mistake) was to rinse my new liner before filling the pond. And I am pretty frugal, so I did not drain the pond and refill. It never even occurred to me to do that until I read that some people do it to get the sand out that got kicked in from construction. I figured it would get much worse, so why bother? 5) Do you think the liner not being rinsed could be poisoning the fish?
6) Also, will I know my bio filter is "working" when I see nitrates registering? From keeping aquariums, this was a sure sign that my filter was cycled. Is it the same for a pond? Do I just have new pond syndrome? I know the green water is most likely suspended algae. I know patience is the best cure. I just want to be sure I'm not missing something. 7) Maybe I jumped the gun on adding fish? Should have waited longer?
8) Forgot to mention, I did use a chlorine/chloramine remover a few days after I filled the pond, BEFORE adding fish.
Thanks for any advice.
Sandy
1) I have 5 potted water lilies (still fairly new), one parrot feather, one cattail, one water clover, 10 very small hyacinths, a pickerel weed, a new clump of sweet flag, and about 30 submerged bunches of hornwort.
Very good! Those should help out once they get acclimated to the water. Until they get acclimated, they're only going to absorb just what they need to simply survive the transition. Back when I did plants in my pond, it took about 1~2 months until they finally indicated good growth. Once they start growing, you will notice improvement in your water quality.
2) I tested the water this afternoon. The pH was 8.4, ammonia 0, nitrites 0, and nitrates 0. Am I understanding correctly that since I see no reading on any of these elements, my biofilter has not kicked in AT ALL yet?
I would strongly encourage you to get a
KH test kit. For detailed info as to why, then check out the thread,
remedial water chemistry and treatment.
When testing pH, you are being
reactive to problems that may occur.
When testing KH, your are being
proactive to problems that may occur. Also, KH is the carbon fuel source for your bacteria to thrive. The higher KH value helps to form a faster bacteria colony
Since your pH is 8.4 and you have kept aquariums, then, I assume your KH is of proper ammount, but this is not always true since KH is simply the measurement of all buffering present. To make sure, do you know what your KH value is ??
I looked up the weather for Shelby Township, Michigan. It looks like your water temperature might be around maybe... 70~75*F ?? If so, this is good enough for decent bacteria growth.
Do you have any air diffusors in your bio-filter?? The extra air and agitation will also help increase the bacteria growth. If you don't, then you can put an aquarium air stone in your bio-filter.
Can you share the results of your municipalities water test values ?? These results tell quite a bit about your waters source and will indicate if you have enough calcium and magnesium since both will also boost the growth or the lack thereof will slow down bacteria growth.
3) I know this is a very low stocking level for 3,000 gallons, but I would think by now I would see something reading above 0.
Under absolutely optimum environmental conditions without the dosage of bottled bacteria, the fastest I have seen a complete nitrification cycle was 5 days and the water in this scenario was being significantly dosed with a high level of ammonia.
In your situation, without knowing anymore information than what's already provided here. my best guess is it is most definitely going to take longer than a week.
Due to the algae also interfering with the bacteria by consuming the ammonia, it may likely take a month possibly. It might be sooner or longer, but it is not unreasonable that nitrates have not shown up yet. Due to your plants and the very low fish stock density, you may never notice any nitrates.
4) I've lost about 8 or 10 goldfish so far, and they seemed healthy enough when I put them in. So I'm trying to understand the reason for the fish deaths.
It's anybodies best guess. Often, feeder comet goldfish are food for other fish so they're not necessarily always kept in the best of health at the store. However, some folk have had great luck and others not so much.
5) Do you think the liner not being rinsed could be poisoning the fish?
Never heard of such of a thing, but, as some would suggest otherwise, I don't know everything !!
6) Also, will I know my bio filter is "working" when I see nitrates registering? From keeping aquariums, this was a sure sign that my filter was cycled. Is it the same for a pond? Do I just have new pond syndrome?
Due to the algae present, your plants, and the very low fish stock density, you may never notice any nitrates.
Yep, when we are talking fundamentals, ponds are essentially just outdoor aquariums. The basic fundamentals are always constant. The only variables different between ponds and aquariums is the chemical synthesis when dosing the water, pond's greater surface area and evaporation, increased contaminants in ponds, and the materials and methodologies will vary according to the ecosystem's context. However, yes, the basic fundamentals still remain the same.
"New pond syndrome" is a constant battle for young ponds depending upon how filtration was built and prepped. Your pond will experience much more terbulence due to weather that your aquarium would never experience. Things do get better once the ponds get properly "seasonsed" as long as ya don't do anything silly!!
7) Maybe I jumped the gun on adding fish? Should have waited longer?
Yes and no. Personally, I would have done things different, but that doesn't matter now. This is the situation now and I think you are doing pretty dang good so far.
8) Forgot to mention, I did use a chlorine/chloramine remover a few days after I filled the pond, BEFORE adding fish.
As long as you properly dosed the water, then everything should be good. I know some dechlorinators require the doses to be adjust according to the pond's volume ppm of chlorine/chloramine present, but this is not true for all of them.
joesandy1822 said:
If it was too many fish, wouldn't there be some ammonia? The ammonia is at 0.
Number of fish sound good. The floating, single cell algae is most likely consuming most of your ammonia. One of two beneficial aspects of algae is that this prehistoric plant can be your saving grace by acting as an extremely effecient bio-filter. However, of course, in this context of starting a new pond, the algae is more of a detriment, or major hindrance, to establishing your bacteria colonies in the bio-filter. Eventually, the algae will crash, but this might take some time. Some of the ammonia might be getting to your bio-filter as well.
As the bacteria is still young and likely still floating around in the water trying to get established, I would
not recommend using a UV light at this point of time where you stand.
To me, the dieing fish is a concern, but, other than taking them out, there isn't much else you can do. If you do decide take them out, then you can approach jumpstarting the pond's bio-filter with a fishless cycle, which goes quite a bit faster at growing the bio-filter bacteria.
As of now, sounds like you're good so far. Maybe get a KH test kit and share a bit more info about your water parameters, as mentioned above, but you sound good so far. I'm trying to stay positive here. :blueflower: