Fish: Re: [tropical fish club] scum

Further to the film problem, I just found this creature in my tank

http://groups.yahoo.com/group/tropicalfishclub/photos/album/1281329942/pic/1542362278/view?picmode=&mode=tn&order=ordinal&start=1&count=20&dir=asc

I have lost a couple of cardinals this week and wonder if this is the culprit?

Re the filter, Water is taken at the top and discharged thru a sparge pipe on the bottom so as to prevent too much movement. But, there is circulation.

Thanks for your help so far guys.

Dave.

http://www.thehungersite.com

Click on the hunger site and help feed the hungry.

________________________________
From: "sevenspringss@wmconnect.com" <sevenspringss@wmconnect.com>
To: tropicalfishclub@yahoogroups.com
Sent: Thursday, 2 May 2013, 15:44
Subject: Re: [tropical fish club] scum

Hi Dawn.

First I'd like to apologize for repeating some of the remarks you've
already made yesterday. I'm only now receiving many of the posts that were made
yesterday afternoon and evening on the Yahoogroups, and wasn't able to read
them until after I already posted this morning. Well. that's Yahoo for ya!

Yes, dust can also create a film as well as stagnate water. I'd think
though, that even though an internal filter is being used -- instead of an
external filter -- it's outflow should still be enough to create enough
circulation that the surface's turnover would not allow any accumulation of dust.
Likewise, the circulation should at least move the surface enough to prevent
stagnation, but then I'm not totally familiar with this particular filter
model.

It would seem though, that most any filter would create a fair amount of
circulation in the water column. As we both recommended though, an airstone
(at the opposite side of the tank), would ensure the surface would be broken
up. I had thought about the same method of removing any film by drawing a
paper towel across the surface, but couldn't really picture the need for it
unless the surface remained stagnate -- which I can't picture it being when
having an operating filter in use, but then the degree of circulation this
filter creates was never explained fully enough for me to get a complete
picture of it in my mind.

It's hard to imagine a filtered and circulated water column going stagnate,
but then too if it is, the removal of the film by paper towels would only
be a temporary remedy as it's not addressing the cause. I've never seen any
film on the surface of any of my internally filtered tanks, so I can't
understand it happening here. Could just be an airstone would solve the whole
thing if it's just a matter of dust.

Ray </HTML>

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