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Going Porcelain

19424 Views 204 Replies 17 Participants Last post by  johnwesley0
I've been experimenting with a ten gallon Chinese porcelain bowl as a suitable aquarium over the years. I'd had pretty good success using a Fluval cannister set up and a couple of sprigs of anubias barteri The bowl gets about an hour of direct sunlight a day. Things were fine until I started experiencing a series of nitrogen cycle crashes long before I properly understood what cycling actually meant. But, since Jan 4, 21 I've had terrific results using nothing more than a container of old bio media from the old setup and the addition of about 4 lucky bamboo plants (a fifth got water-logged and died.) Just gravel substrate; the curved walls of the bowl direct all fish waste to its center where there is now a thin layer of mulm. The parameters have been stable for nearly six weeks: 0 ammonia, 0 nitrites, 15-20 ppm nitrates. Not quite sure how to attach a photo, but I like the conservatory look it lends to my Brooklyn flat. The only Con is that the silica in the porcelain tends to attract diatoms.
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I should add, that's including the rim which has a bit of a lip. From interior wall to interior wall, it's about 17 inches at the widest part.
Cool. You’re cramming in so much into such a relatively small space it looks so great. I’m going to try to find a big fat one. Here near Palm Beach we have an auction house and estate liquidator. They always have cool ceramic wear available for pretty good prices. Here with the retirees in Florida I am in a vast sea of Chinese fishbowls and other Asian goods. I’m just waiting for grandma to have a garage sale! 😂
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Don't pass up ceramic & resin pots ( 15"-18" diameter ) at the local H Depot.
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Update: I mentioned in another thread that I was thinking of moving the red tiger lotus pot to another tank in order to make room for more fast-growing, rooted plants. It was a tough decision, but I decided not to. It's the bull apisto's favorite hiding place in a bowl dominated by schooling zebra danios and I figure he deserves this one spot of territory to call his own. I had to balance the rooted plant situation against the fact that it's been several months since the last fatality and the fish don't seem to be in any distress:
Plant Water Botany Terrestrial plant Groundcover
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I like what's happening with the red tiger lotus. It seems to be growing new leaves without them becoming coated with hair algae:
Plant Botany Organism Terrestrial plant Water


Here's the bull apisto.borelli, peeking from under one leaf:
Water Flower Plant Leaf Petal


But, what I don't understand is what's happening with the dwarf sag. How can the leaves appear so green and healthy looking while coated with hair algae? They are usually the first things to melt under any sign of stress and yet they remain zombie like for what seems forever. Are they photosynthesizing, or is it an optical illusion?
Water Automotive tire Organism Grass Tints and shades
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Sometimes I think I have more pictures of the plants in this bowl than I do of my own relatives! It's been over a year since I planted of couple of red tiger lotus bulbs in used keurig coffee cups and let them root in the mostly gravel substrate. They did moderately well for a while then got lost in the constant shuffle between raising fry in a new tank and finding a place to shelter the adult parents.

This morning, I realized at least one of the k-cups still held a live plant and decided to salvage it:
Twig Wood Soil Recipe Art


The bulb had all but disappeared and an enormous root was just spilling over the rim of the k-cup. Hopefully, it will come into its own in the breeder tank where it will have a proper dirt substrate, but I don't have a good track record at transplanting these bulb-less babies.

OTOH, in the space that has opened up, I discovered something I hadn't seen since I jump-started a grove of dwarf sag in the vicinity. We have a runner!
Plant Terrestrial plant Wood Grass Road surface
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Alas, I am batting zero with transplanting these second-generation tiger lotus offspring once their bulbs have been exhausted. One would think they would prefer the actual soil of the breeding tank to the mulm/STS muck at the bottom of my porcelain bowl - but no. The above attempt resulted in the plant just vanishing over the space of 10 days amidst a jungle of dwarf sag. Meanwhile, its close cousin, the result of an actual runner from the only lotus to survive since the beginning of the breeding tank, is thriving - at the bottom of the porcelain bowl:
Water Organism Terrestrial plant Liquid Wood

Go figure.
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The Battle for the Bottom of the porcelain bowl is really starting to shape up now that the dwarf sag are sending up green shoots:
Botany Terrestrial plant Organism Grass Circle


Again, I can't say enough about my umbrella palms. Thank you, @ronnie!
Plant Flowerpot Houseplant Botany Interior design
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Coming along. I think the dwarf sag is slowly winning:
Water Plant Fluid Liquid Terrestrial plant
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And the red tiger lotus has a couple of new emergent leaves. I think it is slowly coming back from the brink:
Plant Terrestrial plant Food Reptile Vegetable
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The Sag don't look good, covered with algae and probably dying, making the substrate go bad. They're at the bottom where there isn't much light. Ideally, these small plants should be in a shallow tank where they can get the light they need. For this situation, plants with longer leaves or stems might be a better choice than Sagattaria subulata. Cryptocoryne balansae, Val, Sagittaria graminea?
Or you could just dedicate bowl to the RTL. I would hand remove some of that hair algae and trim off leaves that are hopelessly infested with algae.

Looks like the emergent plants are doing great!
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The Sag don't look good, covered with algae and probably dying, making the substrate go bad. They're at the bottom where there isn't much light. Ideally, these small plants should be in a shallow tank where they can get the light they need. For this situation, plants with longer leaves or stems might be a better choice than Sagattaria subulata. Cryptocoryne balansae, Val, Sagittaria graminea?
Or you could just dedicate bowl to the RTL. I would hand remove some of that hair algae and trim off leaves that are hopelessly infested with algae.

Looks like the emergent plants are doing great!
Yes, I was afraid of that. I looked over my previous posts this morning, to try to pinpoint when things started to go south (good thing I keep good documentation!) and it seems as though my concerns with surface air oxygenation steered me in the direction of clearing away the salvinia carpet that was a distinguishing feature of the bowl's early forays into dirt. In hindsight, I think it's clear that the floating carpet was controlling not only the amount of light reaching the bowl, but also a fair amount of nutrients too, making it harder for hair algae to get a foothold. Not sure whether to try going back to the status quo ante or forge ahead with trying to get different submerged plants to compete with the algae? The irony is that it may be the algae that is a chief source of oxygen for the bottom of the bowl!
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I kniow this may be a Hail Mary pass, but after reading recently of another reader's tank of potted plants, i decided to give a handful of dwarf sag a lift:
Water Liquid Fluid Organism Aquatic plant

Hopefully, this will put them a little closer to the floodlight above.
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The dwarf sag is not exactly growing like a weed, but they're not collecting hair grass either. Also, a little carpet of salvinia can conceal a multitude of sins LOL:
Plant Flowerpot Houseplant Terrestrial plant Grass
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Those little Sag are competing with big houseplants and floating plants, which all have the 'aerial advantage'.
In another thread, you mentioned removing houseplants from your Apistogramma tank. The results from that maneuver should be instructive for this situation.
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A tale of two pots, the RTL seems to be making a comeback after struggling a lot during the summer:
Plant Botany Leaf Organism Terrestrial plant



Another key difference is that the RTL has been in potting soil since the day it was bought nearly 18 months ago while the dwarf sag has had to make do with a weak tea of STS and mulm:

Plant Houseplant Terrestrial plant Aquatic plant Grass


I may have to bite the bullet and mineralize the sag separately in a pot of soil by itself. That would go for any new rooted plants I introduce to the bowl.
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These umbrella palms make me want to stop what I'm doing, go to the locally nursery, and buy an excessive amount of this plant.
Big fan of this setup.
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These umbrella palms make me want to stop what I'm doing, go to the locally nursery, and buy an excessive amount of this plant.
Big fan of this setup.
Compliments like that keep me trying to make this setup work even though I had no idea in the beginning whether it would ever make an ideal walstad tank. Things were much simpler when it was just six fish, a clump of anubias and no artificial lighting whatsoever. But not nearly as interesting. :LOL:
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These umbrella palms make me want to stop what I'm doing, go to the locally nursery, and buy an excessive amount of this plant.
Big fan of this setup.
I love it to. I have read though that they do tend to take over, making huge amounts of roots everywhere.
@johnwesley0 how do you keep yours contained to just that spot? If it can work like this I'm going to reconsider having some of it somewhere...
@johnwesley0 how do you keep yours contained to just that spot? If it can work like this I'm going to reconsider having some of it somewhere...
They're in a container sitting on stilts (a small plastic crate.) The roots have nowhere to go but into direct contact with the water at which point they kind of just dangle with maybe some superficial penetration into the substrate. It's not like my RTL whose roots are dispersed clear across the substrate.
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With all the life and death struggles going on in the apistogramma tank, the porcelain bowl has had to play second fiddle in "the conservatory". I took a few helpful hints from @dwalstad's posts and lowered the intensity of my lighting and it seemed to help somewhat:
Dishware Plant Terrestrial plant Recipe Leaf vegetable

I've learned to live with hair algae at the bottom of the bowl (it's a plant and it converts CO2 to oxygen during the day.) It has all but overwhelmed the dwarf sag which seems to exist in a kind of zombie state in relation to it. The red tiger lotus is no longer dormant but seems content to remain submersed; haven't seen a lily pad in months.
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