MOLLY = Best Kept Secret Weapon? - The Planted Tank Forum
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post #1 of 29 (permalink) Old 12-19-2014, 11:13 AM Thread Starter
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MOLLY = Best Kept Secret Weapon?

hey guys i dont think i see this brought up or mentioned much at all but ive seen plenty instances where people ask what they can put in the tank to help combat algae.
i saw this mentioned once online somewhere - cannot remember where i saw it, BUT it came up once again at an lfs i stopped in at a few weeks ago. i was looking for american flag fish which supposedly have a good rep for combating / controlling algae. they did not have any so he says "take a molly".
long story a little shorter ...
it DID NOT DISAPPOINT! i saw improvements over-night.
guess im curious about weather i got lucky with this one or why mollys arent mentioned or brought up as often when the topic of algae control comes up
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post #2 of 29 (permalink) Old 12-19-2014, 11:22 AM
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I think I've read somewhere about Mollies being good algae eaters but I can't remember where.
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post #3 of 29 (permalink) Old 12-19-2014, 11:49 AM
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Black mollies,Herotilapia multispinosa,Black ruby barbs,Flag fish, otocinclus,bristlenose,rubber lip pleco,Farlowella,amano shrimp,nerite snails are a few that love algae.
Mollies do best in hard alkaline water.
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post #4 of 29 (permalink) Old 12-19-2014, 12:23 PM
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They seem to poop a lot though

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post #5 of 29 (permalink) Old 12-19-2014, 12:52 PM Thread Starter
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They seem to poop a lot though
now THAT was an understatement!
that thing has got to be the poopiest fish ever!
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post #6 of 29 (permalink) Old 12-19-2014, 01:02 PM
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I once read that a few of the omnivores don't really have a belly per se ,but rather a long intestinal tract ,and that the food's they eat quickly travel through the intestinal tract and out the other end.
I do not know if this is true bout the bellies,,but the fishes do seem to poop a lot.
Maybe their bellies are very small compared to other species?
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post #7 of 29 (permalink) Old 12-19-2014, 01:03 PM
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Quote:
Originally Posted by luky View Post
now THAT was an understatement!
that thing has got to be the poopiest fish ever!
More than goldfish?
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post #8 of 29 (permalink) Old 12-19-2014, 01:35 PM
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I've also heard that cherry barbs are good, Is that true?
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post #9 of 29 (permalink) Old 12-19-2014, 01:37 PM
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I would not say more than goldfish... however, they do poop quite a lot.

I believe a lot of this is from their vegetarian leaning (but still omnivorous) diet (ie: algae, peas, etc). The vegetables contains less energy and more fiber than carnivorous foods do, meaning they have to eat more volume, and more of what they eat becomes poop. Same thing happens with vegetarian snails like nerites.

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Last edited by mattinmd; 12-19-2014 at 01:38 PM. Reason: clarified omnivore status.
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post #10 of 29 (permalink) Old 12-19-2014, 01:59 PM
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I have had Mollies clean up Diatoms in a brackish water tank. Not sure if they ate other forms of algae. They sure might.
Yes, they thrive in hard alkaline water. Salt is optional, but some species of Molly can thrive in water as salty as the ocean.
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post #11 of 29 (permalink) Old 12-19-2014, 02:07 PM
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not to turn this into a poop thread, but plecos poop a lot, esp if you have driftwood.
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post #12 of 29 (permalink) Old 12-19-2014, 02:58 PM
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Yes, Mollies are great! But sadly, lots of folks treat them like "trash" fish. I've wild sailfins & sphenops... suppos-ly there's a wild all female wild colony down here I'd like to scope out. But yea! I love to watc them pick those plants clean.
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post #13 of 29 (permalink) Old 12-19-2014, 03:32 PM
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While they're good at munching at certain types of algae, mollies are unfortunately also prolific breeders making them less than ideal for many tanks if their primary purpose is to eat algae.

I'd kept a breeding trio to produce fry as live food for my angelfish--when the angelfish went, I re-homed the adults and fry keeping back only one juvenile female that was not yet sexually mature. I'd have loved to have a few more females to keep her company, but the logistics of ensuring only females and not already bred wasn't worth the hassle.
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post #14 of 29 (permalink) Old 12-19-2014, 03:35 PM
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^ ditto the above!
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post #15 of 29 (permalink) Old 12-19-2014, 04:13 PM
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True black molly (Poecilia Sphenops) is supposed to be a great algae eater.
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