What kind of tetras do you have? If you have the bigger ones like diamond
tetras or buenos aires tetras, they might be the ones. I have a bunch of
Hygros that have little bite marks on their tips/edges

I can imagine the plecos rasping on wide leafed plants but not small stem
plants. My bristlenose pleco doesn't.

To prevent it, hmmm. I might put the stem plants at the back of the tank
instead, so it won't be too obvious, otherwise I'm happy that my tetras
nibbling at them bec. that means they're having a balanced diet. My diamond
tetras breed in my tank without me doing anything special to the tank.

"Ross Vandegrift" wrote in message
...
I've got a bunch of tetras, two swordtails, some ottos, three coryodas,
and a bristlenose pleco. I suspect it's the swordtails, trying to eat
hair algae off the leaves, and getting a bit, ahem, overzealous.

Any idea on how to prevent it? Am I perhaps underfeeding them?

--
Ross Vandegrift


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