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Old 07-13-2010, 08:35 PM
 
Location: Round Rock, Texas
13,447 posts, read 15,466,742 times
Reputation: 18991

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My 6" pleco used to keep the tank pristine, so much so that I had to supplement with wafers. I stopped with the wafers and let sunshine into the room for algae. Well now he's not algae eating anymore! And I'm dealing with a small algae problem now! I guess he's eating food remnants from the others? (How I don't know because I also have two corys in the tank that aren't nocturnal like he is and handle clean up). What to do to get him to return to his algae eating ways?
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Old 07-14-2010, 06:32 AM
 
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Maybe there is just more algae than he can possibly eat. My albino bristlenose pleco doesn't keep my 29 gallon tank spotless, it still has algae. How large is your tank?
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Old 07-18-2010, 07:42 AM
 
Location: NE San Antonio
1,642 posts, read 4,091,862 times
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Many algae eating fish eat less algae as they mature, prefering other foods. Also, most only eat certain types of green algae, not brown.

If he is getting skinny, offer him other fish foods or spinach.

Some green algae is natural and can even be helpful for the tank. You can wipe down the glass yourself and occasionally bleach plastic plants or ornaments if you wish.

A couple larger snails can help with green algae on the glass too
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Old 07-24-2010, 08:26 PM
 
Location: Kalamalka Lake, B.C.
3,563 posts, read 5,374,083 times
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Default are you making sure he's getting driftwood????

Quote:
Originally Posted by riaelise View Post
My 6" pleco used to keep the tank pristine, so much so that I had to supplement with wafers. I stopped with the wafers and let sunshine into the room for algae. Well now he's not algae eating anymore! And I'm dealing with a small algae problem now! I guess he's eating food remnants from the others? (How I don't know because I also have two corys in the tank that aren't nocturnal like he is and handle clean up). What to do to get him to return to his algae eating ways?
Driftwood cellulose is an aid to digestion for almost all plecos. (you don't say the species) Is there driftwood in the tank?
If you put in a small piece of zucchini (stab with a fork to weigh it to the bottom) and he doesn't jump on it, you've got a sick fish for some reason!
depending on the species, plecos may or may not be supreme algae cleaners and supplements are a given; algae doesn't really have that much in it and since I add calcium to my tanks the bristlenose plecos I have work on it but aren't very successful with "calcareous" algae. What's your water hardness?

Last edited by thedwightguy; 07-24-2010 at 08:28 PM.. Reason: full reasons
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Old 07-24-2010, 08:35 PM
 
Location: Tricity, PL
61,647 posts, read 87,001,838 times
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As they get older they may eat algae less often and you will need to supplement their diet with algae wafers that sink to the bottom of your tank. Shrimp pellets that drop to the bottom of the tank are another favorite. Drop in the algae wafers or shrimp pellets after you turn off the lights for the day to prevent the other fish in the tank from getting the food before your pleco can get to it.
Plecostomus, Pleco - Hypostomus plecostomus
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Old 07-24-2010, 08:36 PM
 
Location: Up on the moon laughing down on you
18,495 posts, read 32,929,248 times
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well first off, Plecos are not good algae eaters to begin with. Snails do a hella better job. Further as they age they eat less and less algae.

I have two 14 inch plecos and 2 that are about 22 inches. They don't eat one nibble of algae. I feed them veggies.

you might want to get some Siamese Algae eaters or maybe some ottos.
Or maybe some snails.

If the algae problem is small, just wipe it off. and probably reduce the light some
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Old 07-24-2010, 08:39 PM
 
Location: Up on the moon laughing down on you
18,495 posts, read 32,929,248 times
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Quote:
Originally Posted by elnina View Post
As they get older they may eat algae less often and you will need to supplement their diet with algae wafers that sink to the bottom of your tank. Shrimp pellets that drop to the bottom of the tank are another favorite. Drop in the algae wafers or shrimp pellets after you turn off the lights for the day to prevent the other fish in the tank from getting the food before your pleco can get to it.
Plecostomus, Pleco - Hypostomus plecostomus
I think someone earlier mentioned them being nocturnal. Mine no longer are.

They are active all day and sleep at night. In addition to eating plant material they swim to the top of the tank when I approach and they steal food pellets from the surface.

They are basically omnivores and will eat anything
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