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Hey Xiaozhuang,
That's a really beautiful tank. Do you ever get anaerobic bubbles in the soil? It looks like the substrate is very deep on one end of the tank. Thanks.
 

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I love this thread!

What are the pros and cons of powerheads though? aren't there some pond critters / plants that want a still pond?

Anyone have an opinion on whether to move the water or not? Do you lose microfauna by moving the water around with a powerhead?
 

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Powerheads/flow are probably one of the most underrated topics in these forums. It distributes nutrients, CO2 across plant leaves and makes a significant difference to tank health, making the most of the meager CO2 levels of non CO2 injected tanks. Additionally surface agitation introduces oxygen and CO2 to non-CO2 injection tanks. I keep some high light low tech/dirt tanks which I'm quite sure would have algae issues without the significant flow they get. Some plants seem to enjoy flow more than others. Others seem to do okay without much; I've grown DHG, Anubias, mermaid weed, HM, in still tanks/no flow.
 

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Here is my 2 gallon jar. Easily one of my favorite tanks in the house. Currently houses 3 RCS, 2 Amanos and 2 assassin snails and I think 1 Thai Micro Crab but he hides to good and I haven't seen him since I put him in there.
 

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Awesome thread! I am getting into filterless tanks. I also am finding a lot of cold water alkaline loving plants here in Utah. that way I don't need a heater, maybe get a chiller. lol. I won't need any Co2 and the plants have evolved to take up carbon from all the carbonates in the water. No high lighting, in low to medium light. I have found a Mexican Oak leaf variant, myriophyllum variant, cold water hair grass! And some kind of long broad leaved anacharis that looks like a hygro stem plant with crypt leaves. Really have no idea what it is, but it is a really good looking cold water stem plant. I will keep ya'll posted!
 

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Wow, incredible bowls and tanks everyone! Here's mine from around 1999. I was low tech and filterless before it was cool. It's messy but I liked it that way.
Specs:
29 gallon
Plain white bulb
Several hours of sunlight every afternoon
Occasional water changes or top ups
No filter/heater/powerhead
Plain gravel
No ferts or Excel or Co2
Platys and danios


 

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This thread inspired me to see what was possible with dirt, sand, and water. Just planted some leftovers from my bigger tanks. Not sure how it will work, but we will see what light and water changes can do.
Right now, there is some water sprite and duckweed at the top, a narrow leaf java fern leaf with babies on it, a crypt, and a stem of telanthera cardinalis in there.
 

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Carpe Diem
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Do you get too much heat from the lamp so close to the bowl?

I would add more plants and not rush into water changes: in small environment like that, water changes result in disproportionately huge swings in water chemistry. I would let the plants, especially the floaters, do their magic.

v2
 

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It looks brighter than it is. I had a 13w CFL in there but it was too much. Switched to a low watt incandescent. Much dimmer. There are vent holes at the top of the lamp, so at least as far as I can tell, it isn't too hot. I need to pick up a thermometer ( my bigger tanks have the stick on strips) and see what is going on.
I need to get more plants in there, I agree. Need more floaters, because I can't get my hand into the sides, lol.
 

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Just curious if anyone knows, how much flow is recommended for these type of setups on a10-20g cube? What ghp are you running?
 

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Carpe Diem
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I am running 0.

v2
 

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Awesome setups guys! This is what attracted me to planted tanks. Very lil maintenance with a healthier ecosystem for the inhabitants. I have run a few different tanks for a while with no filter. The more plants the better. Will post my gallon bowl soon.
 

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Saw this thread and figured it is a perfect place to share my filterless shrimp bowl. The bowl sits on the little fluval edge stand with the built in light.

Here is a better shot of the inside of it. The green mesh up front is from a luffa and is securing some moss to some lava rock.
 

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How many gallons is the bowl?
It is just a 1 gallon bowl that I got for free from a friend. Down the road I want to pick up a bigger bowl or some small unique tank to fit in there but for now perfect for the couple shrimp and small snails I throw into my main tank to feed my assassins.
 

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Looks great. I am torn on mine. I want to pop a couple ghost shrimp in there, but I think less than a gallon might be too small. Really, it is only about a liter or so.
I have read it is safe to keep about 10 cherry shrimp per gallon so I would imagine a couple ghost shrimp won't hurt. Just make sure your tank is cycled.
 
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