|01-30-2013 10:49 PM|
|danielt||They will eat the remains of your fish as well. If it's soft, they will munch on it like mad. Don't think snails are picky. They eat whatever doesn't run from them and it's not hard.|
|01-28-2013 02:56 AM|
I don't have any plans to alter my water chemistry now - frankly I was concerned about trying because it it doesn't stay stable, all manner of problems would come my way. I feel much better, and more comfortable, about the tank now that I better understand some of the chemistry involved. I'm reading as much as I can, and understanding more and more - thank you everyone for all your help!
I have let the small broken pieces of cuttlebone sink for the snails to find, and I will keep feeding the veggie/calcium sticks. Last time I fed the sticks, the ones that the fish didn't eat were swarmed by groups of snails - a rewarding sight!
|01-27-2013 04:23 PM|
I agree with your point that gH and kH should not be equal. They do different things and they have no relationship with one another besides CaCO3.
I advised searching for Diana's posts more as a bookmark for discussions about water params.
My view on pH is that it's useless on telling what is wrong with your water. The fact it has so much focus puzzles me
Whatever changes you do. Do them slowly as in weeks. I had Staurogyne melt in the span of a few days after bumping my gH considerably. Plants and fish do not tolerate quick changes but they can adapt.
Snails will feed on the remains from your fish. Or broaden the feeding area. When fish are occupied in one part of the tank snails will eat in the other.
|01-27-2013 04:11 PM|
|driftwoodhunter||No, I haven't tried that - I will tonight. I have had a bit of luck by feeding the fish flake at one end of the tank, then dropping the pellets on the other so they might be missed by the fish who are busy elsewhere. I'll combine that with a lights out feeding tonight. I do have one green cory (I know, my bad) and I don't mind if it gets some of the pellets - it's just the big tetras eating most of them gets annoying (although good for the fish I suppose).|
|01-27-2013 04:03 PM|
Have you tried feeding the snails after light off?
But that won't work if you have Cories....
|01-27-2013 03:04 PM|
And here I was thinking my water was bad! I wish I could remember where I saw the posts on getting the KH and the GH to equal. It must have been some of the very last things I've read on the subject - I know that because I've remembered them, lol. I usually only remember the most recent things I read. It's very nice to find out that somehow I've stumbled blindly onto something good in my tank - I'll start testing my others, as well as my tap just for kicks.
As far as feeding the snails, I try. I bought some sinking veggie sticks with added calcium, but the first time I put them in the tank the Buenos Aires and Columbian tetras ate 90% of it. They swam around like little gangsters with cigars until the sticks softened enough to eat. (I admit I was worried about choking). I fed again yesterday and I actually saw snails eating the sticks - the fish only got about 1/2 of it that time. But the fish pick them off the bottom, even pushing a snail off to get the stick. I'm feeding the fish veggies several times a week now, so it's not that they are starved for greens...
The sticks are rather expensive when the fish eat them so fast - if it was just the snails I could justify the cost. I'd like to learn to make my own. I did break up small pieces of the cuttlebone hoping the snails will cruise it once it sinks - and I put a big piece in the filter - I may remove it, I'll see how it effects the water first.
Ok, well I'm not going to tinker with the water in that tank now that I have more info and I'm starting to understand these relationships ~ thank you for all your help!
|01-27-2013 02:40 PM|
Posting you have water testing at 6dGH & 3dKH I would knock holes in the ceiling jumping up and down for joy if I had those values available here for source water.
Provide foods rich in Calcium for your critters and the shell issues will stop. I have Briggs (trap doors) kept in 3-5dGH and 2dKH remineralized RO with no shell issues simply by feeding correctly.
pH concerns are basically last years reference for water quality.
Having the equipment here I've placed electronic pH controllers on low light NPT systems just to see what happens during a 24hr period (used them as simply a monitor). Lighting alone can shift tested pH by a full degree on soft water tanks. Monitoring what the pH reading was in the morning before the photoperiod and again late in the afternoon I recorded a full point shift in value. The only difference was lights on or lights off (more or less CO2 in solution).
Shifts in pH don't really effect our critters and happen in nature all the time.
Water is better understood when defined by it's mineral content, that's what the critters are living in.
Shifts in GH, KH, TDS, (changes in osmotic pressure) that's what effects our critters not a pH value or change in pH per say.
Again a tank tested pH value is the product of carbonate buffers and CO2 content in the water. Acidic or alkaline yes but testing pH as it relates to tank water ignores mineral content. Mineral content effect critters.
First I PM'ed a couple times asking why this was her position then we posted in thread conversations on the topic several times in answer to others members asking (as my sister of the dirt has here) I smiled drinking coffee and reading opinion this morning.
living is learning
|01-27-2013 10:07 AM|
Driftwood does not buffer, it's the opposite as tannins and other organic acids are slowly released in the water they will bind the bicarbonate making the pH to slowly creep downwards.
General rule when it comes to fish is that they tolerate higher gH if they're soft water fish but not the other way around. kH will not do anything to fish.
Forget about the pH and don't regulate your changes based on it. The americanaquarium website is a good source of valuable information. Although I will slam a bit that statement. Carbon is not a source of energy for anything. There are two sources of energy in the aquarium as far as my understanding goes: Light and Chemical reactions
Nitrifying bacteria use nitrogen oxidation to get the energy and use C for food.
ALL plants prefer CO2 before carbonates. Don't rely much on the statement they use carbonates. Some of them don't use them at all and some use it as a last resort.
In general soft water plants will not use carbonates at all. The hard water plants have adapted to use the plenty carbonates that exist in hard water.
A ph of 6.8 - 7 is good for just about anything. I'll go as far as saying that just feeding the snails a good amount of calcium can compensate for the acidity of the water.
One last thought, search on the forums for Diana's posts. I saw her replying to many threads like yours, it's a starting point to find out more about the water chemistry. You can look at my posts as well but I'm not that experienced.
|01-26-2013 10:52 PM|
Perhaps I've had the wrong idea of what my fish need all along. Some searches come up with these general ranges for my main tank inhabitants;
Buenos Aires Tetra;
Hardness: to 35 dGH
pH : 6 - 7
Water Hardness : 6° to 15° dH (I assume that's dGH?)
if so, my GH at 7 could go higher, as well as my KH - but keeping the pH in the Colombian Tetra's range might require a bit of peat, oak leaves, etc. if it goes too high. I already have massive amounts of driftwood in there, so maybe that will buffer sufficiently.
|01-26-2013 10:35 PM|
So I should skip the cuttlebone and try a pinch of baking soda if I only want to raise the kH ?
Here is a link to an article I've only just started reading - however this caught my eye (the italics are theirs) since I don't add co2 to may tanks...
"KH (carbonate hardness) is an important source of energy for nitrifying bacteria that eliminate ammonia and nitrite. In addition, carbonates may be used by plants for photosynthesis when carbon dioxide (CO2) is absent."
and the link to the article if anyone's interested. They do push Seachem buffers rather than baking soda, but this is a sales site; http://www.americanaquariumproducts.com/aquariumkh.html
|01-26-2013 10:08 PM|
|01-26-2013 10:05 PM|
danielt, thank you so much for the clear explanations!
Since my tetras can handle a slightly higher pH, it sounds like I can gently raise my KH - thereby preventing my pH from dropping, but raise my pH slightly instead - which will help my snails by reducing the acidity of my water.
I will try to raise the KH a tiny amount by using the cuttlebone I have, and see if I can strike a happy balance for the snails, fish, and plants.
Thank you so much for responding to my post
|01-26-2013 09:10 PM|
I'll give it a shot. From what I know cuttle bone raises kH but not gH.
Also, pH is raised or rather prevented to go lower by kH. If you raise kH it will have an impact on pH.
gH will not raise pH there is no connection between these two. kH can be raised independently of gH by adding baking soda.
gH can be raised independently of kH by adding Calcium Chloride, Calcium Sulfate and Magnesium Sulfate
Your snails are suffering because the water drains minerals from their shell as it is, most probably, too acid for them. Snails can get their minerals from what they eat and the water itself if it has the right parameters which yours doesn't. On a side note, plants benefit from this water as acid, low kH water is better for some of them.
Clay helps but it doesn't have much Calcium in it. Gipsum (aka Calcium Sulfate) is a good material if you don't want to spend money on commercial products.
I'm using RO water in all my tanks and one of them does not receive anything than fish food but it's full of snails that do pretty good.
|01-26-2013 08:39 PM|
KH & GH questions
trying this again, I had 111 views last time but no takers!
I have purchased a KH & GH test kit. Now that I have the results, I need help understanding them. The tank is a 125g, the GH is 6 and the KH is 3 and the pH is 6.8 to 7.0 (the colors are so darned close on the chart). I keep 95% tetras so this is within their range if I understand the kit's instructions correctly. However my snail's shells erode as they mature, and they die. I purchased a cuttlebone but I haven't used it yet. I also have calcium montmorillonite clay coming in soon. Both of these I got because threads about eroded snail shells mentioned they may help.
Does anyone know how cuttlebone or montmorillonite clay effect GH & KH & pH? I've read that I should try to get the GH & the KH as close to equal as possible, but I don't know how to effect one and not the other, plus I don't want to raise the pH.
Any tutoring would be welcomed!