New pond with bog plan (mkII)


brokensword

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Hi Gbbudd,

Yeah that plan with the bog at the top and the stream running down is the stage 2 plan, although due to the size of the rocks and the enormous tree up there that we can't mess with then the plan is for the pond to be where the bed of agave is and a waterfall running over the big rock (to the right in the picture you posted). Then a bridge over the stream, and a chess board patio next to the pond nestled in some forested garden beds. I have plans. But at this point that's a plan for after the kids get a bit older though as currently that area in front of the rock is earmarked for a kids fort. Although the other option I'm looking at is the bog and stream moving up the other direction, between two big tree trunks. All plans for the future though. I'll post a pic of the whole yard width, it has serious potential.

I did give up on the bio balls. It is now just an intake bay with a pump underneath going straight into the bog, with the bog being the only filter. It's been going really well so far, though not enough plants to suck all the tannins out of the water yet, so it's tea coloured water. No algae though, very clear, just tea coloured. Work in progress in that respect. There are about a million baby fish in there already though so they clearly don't mind in the least.

Hi Kobe - The rocks for my pond mostly came from the local buy/swap/sell facebook group. People would post that they were throwing out bush rock from their garden and I would go load up the car with as much as I could take. It was all free, but quite labour intensive.
I don't believe the plants are going to 'take up the tannins'; you need charcoal for that. Or keep the tannin-laden leaves out of the water in the first place. That net idea comes back to mind...
 
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I believe the types of trees they have down under even just a little in the water and the water tannin's right up. And if im not mistaken it takes a lot of charcoal to filter it out.
 
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Yeah I am going to put some charcoal in the waterfall and see if it makes any difference. From what I have been reading on some aussie pool forums the plants will soak out the tannins but you need a lot of them to make any difference, and I can't find any clear lists of which ones work best. I have a lot of plants in there now so I'll keep you posted.

A net over the top isn't an option, it would need to be made of steel to withstand the local area and it would look awful. I do have a pole net that I have been scooping leaves out with manually every day or so, but the trees above are 50m+ and drop leaves and branches constantly. Like GBBUDD said, just a few leaves and it's tea coloured. Finding the right plants to suck it out is the only real option. Though I'm thinking it's probably just going to have to be a tea coloured pond in the end. That's OK though. The fish and plants don't mind, and it still looks clear and clean.
 

brokensword

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Yeah I am going to put some charcoal in the waterfall and see if it makes any difference. From what I have been reading on some aussie pool forums the plants will soak out the tannins but you need a lot of them to make any difference, and I can't find any clear lists of which ones work best. I have a lot of plants in there now so I'll keep you posted.

A net over the top isn't an option, it would need to be made of steel to withstand the local area and it would look awful. I do have a pole net that I have been scooping leaves out with manually every day or so, but the trees above are 50m+ and drop leaves and branches constantly. Like GBBUDD said, just a few leaves and it's tea coloured. Finding the right plants to suck it out is the only real option. Though I'm thinking it's probably just going to have to be a tea coloured pond in the end. That's OK though. The fish and plants don't mind, and it still looks clear and clean.
When I went looking, I found no reference at all to any plants that would take up the tannins. I found only chemical or physical removal options. I think you could erect a rigid net, something that you can slide/move aside when you want to enjoy your pond but otherwise, is up and shedding branches and leaves. If my pond was always brown and I couldn't see the fish, I doubt I'd even have a pond.

JMHO
 
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Oh I can see the fish easily. It's really quite clear, just a tinge of colour.

I may end up getting a charcoal filter in the end. Will have to wait and see. It's only a month or so old so far..

My concern there is that the easy place for a carbon filter would be on the back of the existing pump, but that would mean it would filter before getting to the bog which would filter out nutrients the bog needs. So I'd need to put a whole separate circulation in for the charcoal. I can do that, but it will be a pain.
 
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I actually love the tea color, in my eyes it beats the algae green we get . but I believe the tannins also inhibit algae growth I don't believe it is due to shading but more from chemical makeup
 
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brokensword

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I actually love the tea color, in my eyes it beats the algae green we get . but I believe the tannins also inhibit algae growth I don't believe it is due to shading but more from chemical makeup
but I would imagine colors like that on shiros and showas, p ogons and Sarassa comets wouldn't look nearly as briliant under that color covering. I can see the 'beauty' where of you speak but don't like permanent color casts on my fish! heh
 
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I have all native fish that are less than 1 inch, frog friendly, and not showy colours like comets. The guppies have some colour and the mountain clouds / gold clouds, but mostly they are pretty dull coloured.

I've been doing cursory reading and it looks like chucking a mesh bag full of activated carbon into the bottom of the bog runoff will filter out a ton of tannins. So that might be an easy fix if it gets too brown. I'll just need to make sure there are enough nutrients for the bog still, so will wait a bit for the 10,000 babies to grow up first.
 

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