120 Gallon Discus Tank

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I just got a 120 gallon. The guy gave me some filter and heaters with it. He gave me 2 large filters that hang off the back of the tank. I’m not sure if this is good enough for the filtration or will I need to get a canister filter, or some other type of filter.
 

max h

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As far as the HOB filters go that's going to depend on their rated GPH. I use canister filters on tanks larger then 55 gallons and normally have 2 filters running, that way if one goes bad there's a backup already running to take over. Also the filters are each rated at a minimum to be able to support the tank as a stand alone filter.
 

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If you plan on growing out juvenile discus you would want as much filtration as possible! Nothing compares to a sump when it comes to the amount of media even a small sump can hold. Upside is also that all your equipment is out of sight. Downside is the drilling of the tank and the plumbing.

For 120 Gal I would absolutely go sump!
 

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It’s up to your budget. Let us know what type of filters they are and we will be better able to help. I have a 125 with a fluval fx6 running it with a power head that has 2 sponges. For a 120 discus tank your looking to move at least 1000 gph. You will also need 2 heaters. One for each side of the tank. Mine are 2 300w finnex heaters. Sumps are great filters but since it’s a used tank I would not drill it. You can still run a sump with hoses. Ask lots of questions. There is a good sized group of us keeping discus now so you will get lots of help . There is a thread running called “Discus Gang Updates” check it out and say hello. Welcome to fishlore .
 
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NicksFishTanks

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86 ssinit said:
It’s up to your budget. Let us know what type of filters they are and we will be better able to help. I have a 125 with a fluval fx6 running it with a power head that has 2 sponges. For a 120 discus tank your looking to move at least 1000 gph. You will also need 2 heaters. One for each side of the tank. Mine are 2 300w finnex heaters. Sumps are great filters but since it’s a used tank I would not drill it. You can still run a sump with hoses. Ask lots of questions. There is a good sized group of us keeping discus now so you will get lots of help . There is a thread running called “Discus Gang Updates” check it out and say hello. Welcome to fishlore .
I have heard the word sump everywhere are I’m still lot entirely sure what it is. Kinda embarrassing. I don’t want you to explain everything unless you want to, but you could just put a link to a website that explains it or something.
 

86 ssinit

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Sorry just don’t know how to link. Fa4960 has a nice sized sump under his tank. Maybe he could put up a picture. You would probably been either a 30gal long or a 40 breeder to put under your tank. On one side you would make a bio-ball field. That the tank water will flow through. Than go into a section of media and other sections. Than the water is pumped back into the tank.
 
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86 ssinit said:
Sorry just don’t know how to link. Fa4960 has a nice sized sump under his tank. Maybe he could put up a picture. You would probably been either a 30gal long or a 40 breeder to put under your tank. On one side you would make a bio-ball field. That the tank water will flow through. Than go into a section of media and other sections. Than the water is pumped back into the tank.
Oh ok. Thank you. I was assuming that’s what it was. That you are clarifying.
 
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86 ssinit said:
It’s up to your budget. Let us know what type of filters they are and we will be better able to help. I have a 125 with a fluval fx6 running it with a power head that has 2 sponges. For a 120 discus tank your looking to move at least 1000 gph. You will also need 2 heaters. One for each side of the tank. Mine are 2 300w finnex heaters. Sumps are great filters but since it’s a used tank I would not drill it. You can still run a sump with hoses. Ask lots of questions. There is a good sized group of us keeping discus now so you will get lots of help . There is a thread running called “Discus Gang Updates” check it out and say hello. Welcome to fishlore .
Also in this you ask for a 125 your looking to move 1000gph. I heard that you would have a filter or pump that is 2x as many gallons as my tank.

I worded that bad. I meant to say that in the first response you wrote, it says for a 125g tank you should be moving 1000gph. I heard in the past, it’s a good idea to only move about 2x the amount of water in your tank. I would like to buy a canister filter if possible because of the trouble and plumbing in order to install a sump. I have a 120 gallon and maybe you could give me some suggestions on what to canister to get. I might just have to install a sump. Note: I’m not looking to spend $200-$300 on a filter either.
Thanks
 

86 ssinit

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Rule of thumb for filters is.... for an hob filter you should be moving 8x10 times the volume often tank. For a canister yo7 should move at least 6 times. For discus the more the better. Clean water and lots of food is what they need to grow.

I started this tank in July with 12 discus. I have an Fx6 which moves 925g per hour and a powerhead with 2 sponges that moves 350gph. This is needed because I feed my fish as much as 10x a day. I bought these fish at 2” and they need this type of feeding to grow. My fish have doubled in size since I bought them.
 

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for 1000gph, you're probably looking at 2 Sunsun 525 gph canisters, which go for around $75-80 each on ebay. or a FX6 which is rated around 900 gph, but costs over $300.
 

86 ssinit

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I hear you. These things get expensive. But you may be able to run that tank with the filters it came with. I also have a 90g that I use 2 hobs on. Just let us know what these filters are. If your not sure take pictures. Marineland make a cheap hob filter. The 350bio-wheel and the 400. 2 of these filters with the power head will run that tank. And will cost you under a hundred.
Yes the sunsun canisters are a great deal. I would get 1 sunsun and 1 Marineland. My only problem is my bigger sunsun (4 baskets) leaked after a power outage. It leaked from the canister seal. The 3 basket one ran great with no problems.
 

86 ssinit

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Lol just realized you have 2 different threads going. Are you starting 2 tanks??
 
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86 ssinit said:
Lol just realized you have 2 different threads going. Are you starting 2 tanks??
Haha. Nope just the 120. The man I was getting them from said it was a 220 but it turned out to be a 120. Kind of disappointed.
 
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86 ssinit said:
I hear you. These things get expensive. But you may be able to run that tank with the filters it came with. I also have a 90g that I use 2 hobs on. Just let us know what these filters are. If your not sure take pictures. Marineland make a cheap hob filter. The 350bio-wheel and the 400. 2 of these filters with the power head will run that tank. And will cost you under a hundred.
Yes the sunsun canisters are a great deal. I would get 1 sunsun and 1 Marineland. My only problem is my bigger sunsun (4 baskets) leaked after a power outage. It leaked from the canister seal. The 3 basket one ran great with no problems.
Just saw that the filter was infested with bugs. I just now decided I’m not going to use those. There was a sponge in it and it’s just completely filled with ants and any eggs. Well it was at least they all are gone now. Thank goodness for bug killer. I will look into that. I was thinking about a sump but my tank had tempered glass so I am not able to drill it. I would have to get a overflow box. I’ll look into the canisters and the sunsuns now. Thank you.

Also your saying I should use a job and a canister on the tank. Would that be good enough for discus?
 

86 ssinit

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Me I like both. Now about the tank was it stored outdoors? How long has it been empty? Did you use big killer near or on the tank.
 
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86 ssinit said:
Me I like both. Now about the tank was it stored outdoors? How long has it been empty? Did you use big killer near or on the tank.
I used it near it but not on it. I don’t think any could have gotten in it. I’m not sure how long it’s been empty and yes it was stored outside in a storage unit.
 
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NicksFishTanks

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86 ssinit said:
Me I like both. Now about the tank was it stored outdoors? How long has it been empty? Did you use big killer near or on the tank.
If I was to put a sump on the tank, would it be a good idea to also have a canister running just Incase something happens to the sump and also just for more filtration or would that be too much with a 1000 gph sump and then a 800 gph canister filter?
 

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