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Does anyone know if I may have made a big mistake using tufa rock in my tanks?
I can't really find as much info on it as I would think there is, but it looks like it raises pH and or hardness or alkalinity or salinity?
I see places that say its good for freshwater, and places that say its bad, so now I'm kind of lost.
Originally Posted by Castro235 View Post
your sump works as it is now, but you can always increase efficiency, creating less work for you and happier fish down the road.
1 black ghost knife
4 black skirt tetras
2 zebra danios
1 algae eater
1 golden killifish
1 bamboo shrimp (MIA)
2 albino cory cats
3 tiger barbs
29 gallon (brackish)
1 Balloon and 10ish babies
Well, I'm not sure exactly what you mean by adding a tray, the way I have it now the overflow goes into the water about 2/3s down, in the first section which is filled with tufa rock, I drew a really bad diagram, but it's better than my description probably.
The blue line is the water level, the green pipe is the flow coming from the tank, and the entire section is filled with tufa rock just under the water level.
Would putting an airstone into that section to keep lots of oxygen in the water right where the bacteria is supposed to be help?
I also forgot to mention I have a large slow spraybar for the tank, it is from the return pump, so it's kind of far far away from the bacteria colonization, but I don't know if the slight aggitation of the surface would put much oxygen in the water, let alone enough to make it all the way back to the sump. It goes slmost half the lengh of the tank, but is a slow flow(I'm assuming because of it's size) so I don't know if it's really adding any oxygen at all.
I wouldn't be able to use bio balls because of the price as well, but I would assume the same theory would be suggested with lava rock.
I don't know that i would be able to set that up with my current sump tank setup, it's actually a really abnormal system I set up in a 10 gallon tank, where the tank is divided into the four corners, I'll try to take a few decent pics, but since it's not cycled yet or anything this would probably be my best time to consider redesigning it. Maybe I'll just build a better sump tank setup out of a tote box.
Well, the idea of a system like that is that the media is kept "wet" by having water constantly flowing over it, but is also exposed to a lot of air, which means there's a ton of oxygen available for use by the bacteria (the same sort of theory behind biowheels, for example).
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