Seeding a sponge for QT

[JJIM]

I would like some clarification on if its best to use a sponge or not for a QT tank when using medications. I have read mixed reviews on using the sponge vs. not using it. "Some" say it only can contribute to soaking up copper (meds in general) if your using it for QT, which then it would only adversely affect your copper concentration makeup in the tank. Other say the sponge is necessary to seed the tank and limit water changes.

Is there a correct answer or only a matter of personal opinion?

How long does it take to seed a sponge from the DT for a QT in order to limit cycle time?

What ones needs in a QT-> heater, pump, pvc.... anything else?

Would it be fine to use plastic plants rather then the pvc to make it more aesthetically appealing?

Thanks!

 

[MrTuskfish]

I'm really not sure what a "correct answer'' is in our hobby. I doubt that there has been much scientific research involving sponge filters in a QT. But (IMO & IME)I've used them in one form or another for years. they don't absorb meds to any measurable degree, copper does. It takes a sponge, in a healthy and cycled tank with good flow, about 3 weeks (just an average guess) to seed. The idea behind PVC is that it provides hiding places, if plastic plants can provide the same----go ahead.

 

[JJIM]

Are you saying that you would not use a sponge with diseases such as ICH then when treating with copper due to its tendency to bind/absorb into the sponge?

 

[MrTuskfish]

Are you saying that you would not use a sponge with diseases such as ICH then when treating with copper due to its tendency to bind/absorb into the sponge?

No, I'm saying the opposite. IMO & IME; either the foam insert for a HOB filter (I prefer Aqua-Clear), air driven sponge filter, or something similar, is the best way to cycle a QT and culture the aerobic bacteria needed to get rid of ammonia/nitrite. Nitrate isn't an issue in a QT. The foam or sponge must be seeded (for about 3 weeks) in an established tank first. I have never heard of a sponge absorbing and releasing anything; like rock and substrate can do. I've used this method for years and ammonia is never a problem in my QT; neither is maintaining a constant copper level. IMO, its simple and fool-proof----the only way to handle ammonia (easily) in a QT.

BTW; this is a forum: an exchange of opinions, research, common-sense, ideas, experiences etc. There are no "right" answers; just the information offered by the participants. Its up to each hobbyist to research their question and come to a conclusion based on what they hear/see/read/experience, or even just feel in their gut. This hobby/addiction is relatively new and involves live animals and an unlimited number of variables. There is no "Fish Czar" or any other source for "right answers that I know of.
Here's a copy of something I've posted zillions of times:


"In regards to Qt cycling; I've done this for years. Get a HOB filter; I really like Aqua-Clear, they have a big sponge and last forever. Don't use the carbon or ceramic noodles that come with the filter. Also, have some extra sponges on hand, they're cheap. Keep a sponge in the flow somewhere in your DT. When you need a QT or HT, just use the sponge that has been in your main system in your QT filter---the QT will be instantly cycled. When done, toss the sponge and keep a new one ready in your main system.
BTW, Cupramine copper, used in a QT,will not destroy a bio-filter."

 

[Dr Colliebreath]

Like Mr. Tuskfish, I have never heard of the sponge absorbing copper. I think they use closed cell foam for the sponge and it doesn't soak up the copper. It is just a porous media with a large amount of surface area for bacteria to grow on.

Copper is absorbed by live rock, so it doesn't make a good material for a QT that will see medications.

I also guess your sponge will seed fully in 2-3 weeks and partially in a week or less.

I use a 4" pvc elbow and a 3" pvc Tee in my QT for hiding space (bought them at Home Depot). Some use plastic flower pots.

I would add a cover to your list of items for the QT so the fish doesn't jump out. I just use 3 sheets of acrylic from HD. They were $4 each and I think they are 11" x 14" or so.

 

[jcmjoe]

I use a 10 gallon for quarantine with a aquaclear 30 filter (sponge in filter) and never have an ammonia issue. I also have a heater and the pvc pipe hiding spots. it works.