cycling new filter on established tank? - Page 2 - Tropical Fish Keeping - Aquarium fish care and resources
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post #11 of 19 Old 03-18-2013, 11:53 PM
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Originally Posted by jpmarini3 View Post
Kribensis- Seen many do ok in 10 gallons as long as theyre by themselves. At most throw in some neons with them. What would be an alternative to a HOB filter?
Any time you are dealing with the possibility of fry, you are going to run into problems with a HOB. That can be death your fry. I would suggest doing something like a well run sponge filter.

You can get one rated for a 10 gallon tank, and hook it to an air pump that is adjustable with it's stream. You can stick that into the established tank to run for a bit so it builds up a good bacteria colony and then move it over to the 10 gallon. This prevents the possibility of fry being sucked up into an in-take and far more gentle for your fish. I would also consider doing things like very hardy plants such as Java Moss, Floating Riccia, Frog Bit, etc something that will help along filtration.
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post #12 of 19 Old 03-19-2013, 12:11 AM Thread Starter
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True about the HOB...I may take a piece of sponge (AC insert) and cut a hole to fit the bottom of the intake tube to protect the fry.
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post #13 of 19 Old 03-19-2013, 12:16 AM
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Quote:
Originally Posted by jpmarini3 View Post
True about the HOB...I may take a piece of sponge (AC insert) and cut a hole to fit the bottom of the intake tube to protect the fry.
Petco or Petsmart sells filter sponges that fit on HOB intake tubes to keep fry out.

Consider the needs of your fish before acting on your desires.
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post #14 of 19 Old 03-19-2013, 07:09 AM
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Petco or Petsmart sells filter sponges that fit on HOB intake tubes to keep fry out.
Yep, Fluval pre-filter sponges do the trick nicely. Not only do they keep fry out, but create pre-bio filtration in the sponge as well:
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http://www.amazon.com/Pre-Filter-Sponge-Pack-Fluval-Aquarium/dp/B004K9A15G/ref=sr_1_8?s=pet-supplies&ie=UTF8&qid=1313977053&sr=1-8.
.
The only down side is that in many situations, the sponge will need to be wrung out once or twice a week or perhaps even every other day to keep water flowing (depends).

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post #15 of 19 Old 03-19-2013, 11:48 AM
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Originally Posted by AbbeysDad View Post
Yep, Fluval pre-filter sponges do the trick nicely. Not only do they keep fry out, but create pre-bio filtration in the sponge as well:
.
Amazon.com: Pre-Filter Sponge 3 Pack for Fluval Edge Aquarium: Pet Supplies
.
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The only down side is that in many situations, the sponge will need to be wrung out once or twice a week or perhaps even every other day to keep water flowing (depends).
Yes, mine have become completely clogged and and shut down the water flow after 2 weeks of me being lazy. But the pre-filter really does a good job of keeping my main HOB media cleaner longer.

Consider the needs of your fish before acting on your desires.
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post #16 of 19 Old 03-19-2013, 12:32 PM
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I bought extra AC30 foam inserts and just cut a hole in one for the intake, to keep fish from swimming up the intake (darn loaches!), mainly because I'm cheap <.< But it's worked well so far. Even stuck one on my canister intake.
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post #17 of 19 Old 03-19-2013, 12:46 PM
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Originally Posted by jentralala View Post
I bought extra AC30 foam inserts and just cut a hole in one for the intake, to keep fish from swimming up the intake (darn loaches!), mainly because I'm cheap <.< But it's worked well so far. Even stuck one on my canister intake.
I love being cheap!
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Consider the needs of your fish before acting on your desires.
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post #18 of 19 Old 03-20-2013, 07:46 AM
And as far as cycling a new filter, using media from an established tank works, but in this case, you could also squeeze/clean the sponge using tank water from the AC70 into a bucket, then into the new filter....instant cycle of sorts.

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post #19 of 19 Old 04-22-2013, 05:49 PM Thread Starter
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UPDATE:
I set up the 10 gallon with an AC 20 filter and cut out the sponge from my established AC 70 into it - I took the rest of the AC 70 sponge and put it in the 10 gal to float. I also took some gravel from my established 55 gal and mixed it into the new tank's gravel. It started running yesterday - but the ammonia level is high today. The bio rocks in the AC 20 are new, but shouldnt the established sponge and gravel have prevented this ammonia spike?

Please let me know ASAP, i put the femaile kribensis into it feeling confident it would be ok for fish, and didn't want the bacteria from the sponge/gravel to starve without a waste source.
Thanks!
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