120g setup questions
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120g setup questions

This is a discussion on 120g setup questions within the Beginner Planted Aquarium forums, part of the Beginner Freshwater Aquarium category; --> Hey guys, im back! Im starting a new 120gallon (48x24x24) tank in my new home in florida. I had a couple quick questions for ...

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Old 03-04-2012, 12:43 AM   #1
 
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Cool 120g setup questions

Hey guys, im back!

Im starting a new 120gallon (48x24x24) tank in my new home in florida. I had a couple quick questions for this tank.

How many watts should i put over the tank if i want high tech, Co2 and ferts)?
Im debating between discus and tetras. Are discus even possible, if so how many? Also, how many tetras, they will be the only mid water swimmers.
The only other fish in the tank would be cories, ottos, and some shrimp.
Can anyone recomend a filter for this size of tank that is nice, but not G series price?

I also want your opinion on stand color/skin. Should i go with zebra wood, or get it smooth shiney orange?

Plants will mainly be grasses/groundcover, a red tiger lotus, and a bunch of windelov ferns. I plan on doing petrified wood for the foreground hardscape and normal bogwood for the background.

I hope i didnt forget anything
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Old 03-04-2012, 08:04 AM   #2
 
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never had discus personally but im thinking 6 maybe even 8. For high tech id be thinking 2 or 4 4" T5s. There are a bunch of fixtures out there that will provide either or. I would thinking either 4 would be super light, 2 would only be high light based on the depth of the tank.

remember, discus like nice still calm water. Maybe a small canister like a Rena XP3, provided its heavily heavily planted. It can usually be found for down around the $180 mark. keep in mind, discus arent small fish. They will produce waste, and it will need to be cleaned out! I would almost recommend spending the extra $70 and going to the bigger filter.
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Old 03-04-2012, 11:56 AM   #3
 
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Discus and bright light do not mix well, so I would rethink things. A 120g is a good size for a group of discus, 7-9, but I would go with Echinodorus swords like Echinodorus bleherae and Echinodorus cordifolius as the main plants since these can manage with moderate light. The red Tiger Lotus is still possible, I have two of these in my 90g with moderate light and thick floating plant cover on top of that.

For filtration, a good canister rated for the tank size. Eheim if you can afford it, Rena XP3 would be my second choice (of have this on my 5-foot 115g).

Two T8 48-inch tubes max over this, with good floating plants like Water Sprite or Amazon Frogbit. Some of the tetra work well with discus, those that are peaceful and can manage at higher temperatures (discus need 80-82F). Cardinal tetra, Brilliant Rummy Nose Tetra, Roberts Tetra and Rosy Tetra are all good. And all of these share the discus' preference for soft water.

Byron.
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Old 03-04-2012, 12:02 PM   #4
 
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would two T8s be enough for co2 injection? Not that I would want him to tan his discus, but I would assume the light would be diffused somehow anyway, just curious
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Old 03-04-2012, 12:21 PM   #5
 
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Originally Posted by beetlebz View Post
would two T8s be enough for co2 injection? Not that I would want him to tan his discus, but I would assume the light would be diffused somehow anyway, just curious
I didn't mention the CO2 previously, by design. I was thinking that perhaps it was there to lower the GH and pH more than for the plants. But as long as light is the limiting factor, there would be no concerns over CO2.

Plants can only utilize CO2 if all other requirments are met, including all 16 other nutrients plus sufficient light intensity to drive photosynthesis. We aim to make light the limiting factor in planted tanks as this prevents excessive algae. So if the light is minimal as with two T8 tubes, this will be the limiting factor and the added CO2 will serve to lower the GH and pH. The plants will undoubtedly benefit from the CO2 to some degree, but only up to the light limit.

If one is adding diffused CO2 solely as a means of increasing plant growth, then yes, without sufficient light (and the other nutrients) this will be useless.
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Old 03-04-2012, 03:44 PM   #6
 
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Oh ok! thanks guys. i really want the open look because it looks simplistic, and if that doesnt allow me to have discus thats fine. Another fish i was thinking were altum angels, but is my tank tall enough? its 24inch tall, but with gravel and plants everywhere they might only get 20" of swimming. from what i know, altums can get like 11".

If angels dont work ill stick with just a big school of tetras, corys, ottos, and shrimp. :)
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Old 03-04-2012, 08:00 PM   #7
 
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Originally Posted by teddyzaper View Post
Oh ok! thanks guys. i really want the open look because it looks simplistic, and if that doesnt allow me to have discus thats fine. Another fish i was thinking were altum angels, but is my tank tall enough? its 24inch tall, but with gravel and plants everywhere they might only get 20" of swimming. from what i know, altums can get like 11".

If angels dont work ill stick with just a big school of tetras, corys, ottos, and shrimp. :)
I'm not fully understanding your aim, and I don't want to mislead you. Not sure what you mean by wanting the open look, and how this relates to adding CO2 and higher light.

Light is anathema to most fish, so keeping it minimal (sufficient for the plants but no more) is wise. Angels, tetra, and most forest fish are no different than discus in this respect.

Byron.
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Old 03-05-2012, 01:51 AM   #8
 
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i was actualy just looking at the post "aquascaping", and the discusion going on there is exactly the oposite of what im trying to achieve. I want an "amano tank", all about the aquascape, not the fish. I dont want to stress the fish out, because im not cruel, but the fish arent my main focus. If it would stress those fish to be in that tank maybe i would only get 20-30 tetras and a school of corys.
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Old 03-05-2012, 11:46 AM   #9
 
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Originally Posted by teddyzaper View Post
i was actualy just looking at the post "aquascaping", and the discusion going on there is exactly the oposite of what im trying to achieve. I want an "amano tank", all about the aquascape, not the fish. I dont want to stress the fish out, because im not cruel, but the fish arent my main focus. If it would stress those fish to be in that tank maybe i would only get 20-30 tetras and a school of corys.
Where is this post aquascaping, can you link it.
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Old 03-05-2012, 04:57 PM   #10
 
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Originally Posted by Byron View Post
Where is this post aquascaping, can you link it.
http://www.tropicalfishkeeping.com/a...12-part-94701/

This one :)
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