Go Back   Aquarium Advice - Aquarium Forum Community > General Aquarium Forums > General Hardware/Equipment Discussion
Click Here to Login

Join Aquarium Advice Today
Reply
 
Thread Tools Search this Thread Display Modes
Please support our sponsors and let them know you heard about them on AquariumAdvice.com
 
Old 03-13-2009, 11:30 AM   #11
tug
Aquarium Advice Newbie
 
Join Date: Feb 2009
Location: Washington, DC
Posts: 3
Interesting post. Rena is sounding very good. I have the EHEIM 2232 Ecco and have a1/2 inch inline heater with no problems. Easy to clean the flow rate is ruffly 127 GPH, the 2234 ≈ 143 GPH, 2236 ≈ GPH.
__________________

__________________
tug is offline   Reply With Quote
Old 03-13-2009, 03:05 PM   #12
Aquarium Advice Addict
 
Fishyfanatic's Avatar
 
Join Date: Dec 2004
Location: Illinois
Posts: 11,964
I see what you are saying. If you follow the instructions you won't have an issue. When it comes to canister, as long as you pick a reputable brand, you're fine.
__________________

__________________
Vote for Aquarium Advice

29 Gallon Lake Malawi Fry
55 Gallon Community
150 Gallon Lake Malawi Cichlid
Fishyfanatic is offline   Reply With Quote
Old 03-14-2009, 06:43 PM   #13
Aquarium Advice Addict
 
Floyd R Turbo's Avatar


 
Join Date: Feb 2009
Location: West Des Moines, Iowa
Posts: 1,682
So I stopped at a petsmart and they had a Fluval 305 open box, so I got hands on one of those today. I was not impressed, it seemed like an illogical design.

The tub is separated into 2 section, one side is a vertical cartridge that contains 2 filter pads, one of either side, and it takes up about 1/4 to 1/3 of the tub. The rest of it has the stackable trays in it. So the water flows through the vertical pad and is forced through the bottom to the other side and then up through the trays. The vertical pad design is what didn't make sense to me. Maybe I just didn't see it right?

The others seemed consistent with tray-only design, which makes sense to me. Hoever the fluval did have plenty of space below the inlet for flow into the tub.

Still hung up on the Rena inlet tube being right against the top of the top tray cover. IMHO that is a serious design issue, fluid dynamics tells us that orientation will result in restriced flow, meaning to get the necessary flow desired you need a more powerful motor. Perhaps they needed backpressure for it to function right?

Still haven't gotten into a Cascade yet.

So far the one that looks the best to me is the Marineland with the inlet tube running through the inside corners of each tray to the bottom of the tub, then up through the trays. The trays were snug in the tub since there's no need for flow around them, and it seems that you would have less chance of flow-by between trays in that design.

Can someone describe to me how Eheim designs their inlet and trays since I can't seem to find one around here? The round design they use makes sense, almost no chance for flow-by between trays there, but can't find pics to see how it all looks.
__________________
Floyd R Turbo is offline   Reply With Quote
Old 03-14-2009, 07:02 PM   #14
Aquarium Advice Apprentice
 
Join Date: Mar 2009
Location: Newburgh, IN
Posts: 28
I would recommend Rena xp2 or xp3. I have an xp2 on my 55gallon and the water is always crystal clear. My brother has an xp3 on his 55 gallon and you really can't tell the difference. I have 2 xp3's on my 120 gallon again the water is always crystal clear. My dad has a 125 gallon in which he had 2 eheims on it and his water was never as crystal clear as ours was. We tried to tell him before he bought them but the store he bought his tank from didn't carry Rena. So just recently he finally switched to 2 rena xp3's and it has made a world of difference on his tank. With the rena you can use either the stars or ceramic rings in the media baskets. I have been very satisfied with my Rena filters. I would definitely buy them off of ebay or online somewhere, it's definitely cheaper than your lfs.
__________________
luvincichlids515 is offline   Reply With Quote
Old 03-15-2009, 12:16 AM   #15
Aquarium Advice Addict
 
Floyd R Turbo's Avatar


 
Join Date: Feb 2009
Location: West Des Moines, Iowa
Posts: 1,682
Quote:
Originally Posted by luvincichlids515 View Post
My dad has a 125 gallon in which he had 2 eheims on it and his water was never as crystal clear as ours was.
Thank you, that's the kind of input I was looking for.

I finally got my hands on a Cascade and Eheim Ecco series at Petco today. I noticed that the Eheims had a much lower GPH rate, and was surprised when I opened one up to see that the inlet seemed to be even more restrictive than the Rena inlet! It lets out into a section less than 1 square inch, then it flows through an outlet toward the outside of the tub again less than 1 sq in. I however did like the trays, they lock together on top of each other, and the bio media was hundreds of little balls about 1/2 cm in diameter, each tray was packed with them, and there was an additional package of them (lord knows why). Interestingly, the hose clamps were exactly the same as the Cascade clamps. I was expecting to see something different, I guess.

The Cascade was interesting, it also has a design similar to the Marineland where the inlet is via a tube through each tray down to the bottom, and the trays are very large, probably the largest out of all the canister filters I looked at. The drawback I saw was that the trays did seem kind of flimsy, cheap plastic. Maybe that's why they are 1/2 as much as everything else on Big Al's Online.

The german made Eheim with it's restrictive flow design made me think that maybe there is a reason behind the Rena design, and maybe it's not that bad after all. I guess since the flow rate on the XP2 is 300/hr that's 5/min and maybe at that rate the resistance doesn't affect the efficiency. Eheim flow rate was much lower for a comparable tank size recommendation, the 2236 (largest) said 80 gallons tank size @ 185 GPH, whereas Rena's XP2 was 75 gallon @ 300 GPH. Perhaps this explains your dad's problem and the difference Rena made.

As far as bio media goes, that stars seem like a poor choice, the ceramic rings seem better, but I really dig the balls that come with the Eheim, they seem like the best, tons of surface area.

So at this point, I'm definitely leaning towards Rena XP2, though the XP3 has the flow control I'm looking for 300 GPH max with the planted tank, and if that reduces by 25% over time to 240 GPH, I'm still turning the tank almost 5 times an hour.

I'm guessing that if I use the Eheim substrat bio-balls in the Rena filter, that would probably slow the flow rate down since they're so tiny, and that seems like the best of both worlds. In that case, I might go with the XP3 so I have enough room in the trays for the coarse and fine prefilter pads, the bio-chem zorb (see more below on that), and 2 half trays of Eheim bio-balls, then the fine floss at the top. I guess I might go with the XP2 and ceramic rings if it really doesn't make a difference, I just think the more bio-media the better.

I don't need carbon filtration because I'm running a planted tank, but I just watched the API video on Bio-chem zorb and it says it's supposedly good for a planted aquarium, even though it says it's a blend of materials that include carbon. Any input from the planted tank experts on this?
__________________
Floyd R Turbo is offline   Reply With Quote
Old 03-15-2009, 12:29 AM   #16
Aquarium Advice Apprentice
 
Join Date: Mar 2009
Location: Newburgh, IN
Posts: 28
If you are teter tottering over the xp2 and the xp3 I would go with the 3 that way if you ever get a bigger tank you already have a filter you can use. I'm pretty sure with the rena you can use any kind of media in the baskets I got both stars and ceramic rings. I started my 120 gallon with only 1 xp3 and had no problems, I only got the second xp3 because it was free and I got it about a month ago. I'm sorry I don't have any experience with live plants, I don't think they would survive in my tanks, the cichlids love picking at my fake ones.
__________________
luvincichlids515 is offline   Reply With Quote
Old 03-15-2009, 12:36 AM   #17
Aquarium Advice Addict
 
Floyd R Turbo's Avatar


 
Join Date: Feb 2009
Location: West Des Moines, Iowa
Posts: 1,682
Oh, how I would love to get a bigger tank someday...I tell ya, once you get into aquariums and they get into you - you're hooked for life. If I had money, space, and time (lottery???) I'd set up as many tanks as I could and become a local breeder!
__________________
Floyd R Turbo is offline   Reply With Quote
Old 03-15-2009, 12:45 AM   #18
Aquarium Advice Apprentice
 
Join Date: Mar 2009
Location: Newburgh, IN
Posts: 28
They are addicting my very first tank was a 20g then I went to a 55g and a 30 g then I wanted bigger.....petsmart had an awesome deal for the 120g I just couldn't pass up. I just helped my brother clean up and set up a 220g that he got for $500.00. He lucked out big time! He got the tank, stand, a coralife 4 way lunar light, 4 xp3's (thats how I got my second one free) 100lbs of holey rock(I stole some of that too because I found the deal for him and talked him into it) He also got about 30+ cichlids including an 8 in clown loach and a 7 in frontosa (both are gorgeous) and then all the chemicals and stuff. It was a lot of elbow grease though, the guy was getting rid of it becuase he was to the point he couldn't take care of it. We think that he only ran 1 xp3 at a time and once it got so mucked up and wouldnt filter very good he would just buy another because when we went to pick it up he only had 1 running at the time. Eventually I would like to go for a 150g or 180g not sure which, but 220g is too big for me but it is gorgeous. Right now I'm selling my 30g because my husband doesn't want 3 tanks set up right now
__________________
luvincichlids515 is offline   Reply With Quote
Old 03-15-2009, 01:03 AM   #19
Aquarium Advice Addict
 
Floyd R Turbo's Avatar


 
Join Date: Feb 2009
Location: West Des Moines, Iowa
Posts: 1,682
That's cool! I'll be saving up for the big tank...if I can convince the 'better half'!!

Back on the subject though...I just went to the Marineland site and watched their video on their C series. I have to say I was impressed, and it did strike me that they mention competitors flow-by rate due to the design of forcing water around the outside of the trays and down vs through the tray. This was the other concern I had with Rena, their trays are made of a semi-flexible rubbery like material from what I remember, and since they're square, you would think if the bottom tray of coarse/fine gets too clogged, the water pressure/suction is going to pull the side of the tray inward and you would easily get flow-by at the tray junction.

I'm kind of wondering, why not go with a brand new design that addresses all these issues I'm coming up with? Plus I love my Marineland Magnum 330 that's 20 years old and still works great, I replaced the top and I didn't add oil for a really long time, then used the wrong kind so it's a little loud, but that's about it. They make great products...

Oh, decisions. Gonna make another rum & diet and have a smoke and think about it some more...not enough $ right now to jump on any decision, I suppose that's good though.
__________________
Floyd R Turbo is offline   Reply With Quote
Old 03-15-2009, 01:44 AM   #20
Aquarium Advice Addict
 
newfound77951's Avatar
 
Join Date: Feb 2006
Location: St Petersburg FL
Posts: 2,114
I will second the Rena XP's in general and the XP3 specifically for a 55g. That's what I have on my planted 55 with pretty high bioload and it works great. I have an XP2 on my 36 corner and while it is a bit of overkill on that tank (mostly just because of the current speed in such an oddly shaped tank) the XP2 would not be enough on the 55.
__________________

__________________
newfound77951 is offline   Reply With Quote
Reply

Tags
canister, canister filter, filter, ich

Please support our sponsors and let them know you heard about them on AquariumAdvice.com

Thread Tools Search this Thread
Search this Thread:

Advanced Search
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off


Similar Threads
Thread Thread Starter Forum Replies Last Post
Canister filter vs. HOB filter for a planted tank fort384 Freshwater & Brackish - Planted Tanks 11 02-02-2009 01:09 AM
Choose my 2nd Filter & 1st Skimmer! nsu7 General Hardware/Equipment Discussion 7 06-15-2005 04:36 PM
Filter Floss in an Eheim 2026 Canister Filter hforney General Hardware/Equipment Discussion 6 02-27-2005 02:28 AM
Via Aqua Canister vs Fluval Canister Filter? TygGer General Hardware/Equipment Discussion 15 09-19-2004 02:09 AM
live rock filter or canister filter? bschnuck Saltwater Fish Only & FOWLR 3 06-17-2004 04:48 PM







» Photo Contest Winners








Copyright 2002- Social Knowledge, LLC All Rights Reserved.

All times are GMT -4. The time now is 11:29 PM.


Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2017, vBulletin Solutions, Inc.