Help with build up
2 posters
Help with build up
by Sandman1969 Thu Oct 17, 2013 3:28 pm
I need to figure out how or where my 130 gallon tank is suddenly getting what looks like a dark algae.
https://dl.dropboxusercontent.com/u/86135726/IMG_0024.JPG
As you can see in the pic, the stuff is on the glass beside the output tubes from the DIY filter on top of the tank.
This filter is made from a 10 gallon rubbermaid storage tote with a 4 inch high spacer at the bottom that has a bio bag on top surrounded by pot scrubbers & topped off with floss to seal it in. I used to have a polyester or something furnace filter in place before the floss.
The water coming out of the filter is clean as nothing visible to the naked eye shows up in a cup full of the output.
I recently stopped using the furnace filter. Would that be the reason this is now forming?
https://dl.dropboxusercontent.com/u/86135726/IMG_0024.JPG
As you can see in the pic, the stuff is on the glass beside the output tubes from the DIY filter on top of the tank.
This filter is made from a 10 gallon rubbermaid storage tote with a 4 inch high spacer at the bottom that has a bio bag on top surrounded by pot scrubbers & topped off with floss to seal it in. I used to have a polyester or something furnace filter in place before the floss.
The water coming out of the filter is clean as nothing visible to the naked eye shows up in a cup full of the output.
I recently stopped using the furnace filter. Would that be the reason this is now forming?
Sandman1969- Angel Fish
- Posts : 398
Join date : 2013-09-15
Re: Help with build up
by GaryE Fri Oct 18, 2013 8:20 pm
It looks like an algae I see in my larger (40 gallon) grow out tanks. It's a low light growth from heavily stocked tanks. I take it off with a razor blade (the one sided painter's blades).
I don't get it in brightly lit or lightly stocked tanks, but it's a pain when there's a heavy bioload. It scrapes off easily though.
I don't get it in brightly lit or lightly stocked tanks, but it's a pain when there's a heavy bioload. It scrapes off easily though.
GaryE- Veteran Member
- Posts : 2505
Join date : 2013-09-07
Re: Help with build up
by Sandman1969 Sat Oct 19, 2013 6:21 am
The tank's stock hasn't changed, just the media the one filter was using.
I think I will put the other media back in after it gets a good cleaning.
I think I will put the other media back in after it gets a good cleaning.
Sandman1969- Angel Fish
- Posts : 398
Join date : 2013-09-15
Re: Help with build up
by GaryE Mon Oct 21, 2013 7:19 pm
I don't get this in 'new' tanks - here, it's a build up over time problem. I was generously given some fish last year that pushed my largest tank into a manageable overstock, but the chronic pressure of the bioload seems to be behind the algae. I've been selling off and moving fish from that tank to ease the problem, but it isn't helping yet. I expect it will, as O move out more stock in the fall auctions.
I get it in one other crowded tank too, but in none of my more lightly stocked aquariums.
I get it in one other crowded tank too, but in none of my more lightly stocked aquariums.
GaryE- Veteran Member
- Posts : 2505
Join date : 2013-09-07
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