Second canister for an 180g tank - Page 3
Tropical Fish

Tropical Fish Keeping - Aquarium fish care and resources » Freshwater Fish and Aquariums » Beginner Freshwater Aquarium » Second canister for an 180g tank

Second canister for an 180g tank

This is a discussion on Second canister for an 180g tank within the Beginner Freshwater Aquarium forums, part of the Freshwater Fish and Aquariums category; --> Originally Posted by corina savin I know I need more than one, based on the performance on my old 75g. The Eheim flow is ...

Check out these freshwater fish profiles
False Rummy Nose Tetra
False Rummy Nose Tetra
Bristlenose Pleco
Bristlenose Pleco
Like Tree27Likes

Reply
LinkBack Thread Tools vBmenu Seperating Image Search this Thread vBmenu Seperating Image
Second canister for an 180g tank
Old 05-06-2013, 12:28 PM   #21
 
Byron's Avatar
 
Quote:
Originally Posted by corina savin View Post
I know I need more than one, based on the performance on my old 75g. The Eheim flow is slow and it becomes slower over time that it grows "brownish flakes" inside the tubes. I am not sure what comes first: it grows algae because is such a poor pump or it has a slow flow because is clogged with algae. However, it serves my angels well.
This is a very different thing, and not one solved by two filters which are unnecessary here. The flow rate of any filter will naturally slow as the filter does what it is intended to do, collect detritus. The answer is more frequent rinsing.

I find my Eheims on the 70g and 90g require this maybe once every 3-4 months. The Rena XP3 on the 115g needs cleaning every 2 months.

The stuff collecting in the tubes should be removed regularly, as this can harbour detrimental bacteria, according to a microbiologist.

Any filter needs proper maintenance; adding more filters is not a substitute.

Byron.
Byron is offline   Reply With Quote
Old 05-08-2013, 08:49 PM   #22
 
Quote:
Originally Posted by Byron View Post
I don't seem to have expressed myself well in this thread, as the crux of the issue has been missed throughout. I'll try once more.

By setting up any canister with the intake and outflow at opposite ends, there will always be water movement from one end to the other. It has to be, it is a law of physics that if you are pulling water out at one end and pushing it in at the other, the water must be flowing from end to end. It can't be otherwise.
You have expressed yourself quiet clearly. The point I am trying to get at is that in larger and deeper tanks, set ups like this do not always properly filter the entire tank properly. Deeper than average tanks and longer than average tanks have a potential to have different complications depending upon the situation and set up (as well as stock and decor arrangement).

Which is why I point out for the benefit of OP that while setting up the canister as you described is good, pay attention to the current and get something suitable to supplement it if you see trouble spots forming where your water is beginning to layer or create stagnant spots. It does no good if only the mid to top range is being filtered/circulated properly.

It was suggested in here rather that they might get an HOB and put that on the tank as supplemental. If the person has need for another filter, the issue existing will not be corrected by an HOB. They need to look into other options (as described) that in the long run will be less headache inducing. Also keep in mind what works for a mature planted tank may not work for a tank being started right off the ground.
Chesh likes this.

Last edited by Sanguinefox; 05-08-2013 at 09:07 PM..
Sanguinefox is offline   Reply With Quote
Old 05-08-2013, 10:00 PM   #23
 
jaysee's Avatar
 
Some people don't plant their tanks at all :-O I know, it's hard to believe...

I used to be surprised how people just assume that everyone is going to heavily plant their tank. As if that's the only way to do it.


Sent from Petguide.com App
Chesh likes this.
jaysee is offline   Reply With Quote
Old 05-09-2013, 10:56 AM   #24
 
Chesh's Avatar
 
I don't really have enough experience to be helpful on what works or doesn't work out in the long term. Much of the information out there for beginners implies that you want to keep the surface of the water moving for oxygen, this doesn't necessarily apply to planted tanks for several reasons. . . but from what little I've seen, there are a lot of variables tank to tank. As Fox pointed out, a newly setup tank will behave far differently (from what I've seen) than an established one. The animals you keep also may affect things, not counting current preferences. For example, when I had 5 Dwarf Frogs in a species-only tank, I would often get protein film on the surface due to the foods they eat. A bit of surface agitation solved the problem nicely, and the plants continued to thrive. *shrugs* Interesting topic. . . and such an important one!

It IS the only way to do it, Jaysee. We just haven't figured out how to convince you of that just yet!
Chesh is offline   Reply With Quote
Old 05-09-2013, 11:37 AM   #25
 
SeaHorse's Avatar
 
Quote:
Originally Posted by jaysee View Post
Here's an interesting read on filter intake placement. Supposedly actual data, produced by a computational fluid dynamics model.

Google Translate
I looked this page over... interesting water flow movement and lack thereof and it seems, from this data/experiment, that what Sanguinefox is saying about possible dead spots in a large tank... to be true. And those tanks were not even that big. A power head of some kind may be in order and you may have to carefully watch the tank for several days after decor is added to see what is needed.

Let us know what you end up deciding to do.
Chesh likes this.
SeaHorse is offline   Reply With Quote
Old 05-09-2013, 11:56 AM   #26
 
Byron's Avatar
 
Quote:
Originally Posted by Jakiebabie View Post
I looked this page over... interesting water flow movement and lack thereof and it seems, from this data/experiment, that what Sanguinefox is saying about possible dead spots in a large tank... to be true. And those tanks were not even that big. A power head of some kind may be in order and you may have to carefully watch the tank for several days after decor is added to see what is needed.
This is certainly true [the flow patterns I mean], but the fact is that it does not cause issues unless things are way out of balance. This has to be the case, otherwise those aquarists who have maintained large tanks with minimal flow or even no filter at all for decades would have killed off all their fish long ago. And, don't forget that fish can swim where they want in the aquarium, to avoid what they don't like.

It is also perfectly true that without plants, filtration is much more significant an issue, as I've often written.

But it is the fish in the tank that is the guiding factor. Different fish require different methods.

My initial response addressed the specific case set out by corina savin.

Byron.

Last edited by Byron; 05-09-2013 at 12:49 PM..
Byron is offline   Reply With Quote
Old 05-09-2013, 11:06 PM   #27
 
Tazman's Avatar
 
Have you considered the possibility of adding a wet/dry filter ? These can be made very easily with minimal parts and not very expensive (the most expensive part being the return pump usually).

They can be made whatever size you want really and have a larger surface area for bacteria to adhere to than any canister.

We are here to offer suggestions but to be honest I see no reason why a second canister can be anything but beneficial. The ultimate decision rests with you.
Having a second canister allows a semi redundancy should you need to perform maintenance or have an issue with the other.
Tazman is offline   Reply With Quote
Old 05-09-2013, 11:09 PM   #28
 
jaysee's Avatar
 
Adding a wet/dry or a sump is an excellent choice for a large tank like that.


Sent from Petguide.com App
jaysee is offline   Reply With Quote
Reply

Similar Threads
Thread Thread Starter Forum Replies Last Post
Need Help Setting Up 180G Tank For Roseline Sharks robsworld78 Beginner Freshwater Aquarium 20 10-22-2011 03:28 PM
Possible DIY 90-180g tank. d0r0g0 DIY Aquarium 2 04-25-2010 02:00 PM
Protien Skimmer on 180G Discus tank? Arkangel77 Beginner Freshwater Aquarium 8 03-11-2009 07:04 AM
Lights for a 180g FOWLR uksub Saltwater Aquarium Equipment 7 02-18-2009 04:45 PM


Thread Tools Search this Thread
Search this Thread:

Advanced Search



All times are GMT -5. The time now is 01:00 AM.