Are my plecos eating the rocks

[Workingmummy]

Hi in my pleco tank I have these two rocks . To me they seem to be getting more holes I was wondering if it's possible for my plecos to actually be eating the rock away ?

 

[nik_n]

What type of rock are they? One of them seems to be an air stone type of thing. This is most probably the reason for the new holes.

Plecos don't eat rocks they will only eat the algae on top of it. Plecos eat driftwood but they still need to be fed after the lights go out.

 

[Workingmummy]

I'm not sure what rocks they are as I was given them yeah I stuck a airstone under one as thought it would look pretty but they seemed to me to be getting smaller and more holes before I did that I dunno maybe I'm imagining it my other half thinks I'm going insane lmao ??

 

[Workingmummy]

And yeah I feed once lights out.

 

[PheonixKingZ]

I said this in your other post about these rocks:

It could be coral or some other calcium rich rock. They are most likely dissolving, not being eaten.

Coral/calcium filled rocks and negatively impact your tank. They raise the hardness of the water to an uncomfortable level for your fish.

One way to test it is to pour vinegar on them. If they fizz like crazy, they are calcium rich, and not suitable.

 

[Sgooosh]

plecos eat wood right?

 

[Boundava]

Agree that you need to test the rocks, if they are dissolving its not good for water parameters. Plecos will not eat rocks, only certain plecos eat wood-mainly those in the panaque genus. Others rasp on wood for the aufwuchs that grows on the wood-but not the wood itself.

 

[Colin_T]

The rocks look like a piece of limestone and a piece of dead coral. They are calcium carbonate and the top layer will soften up over time. The fish are probably grazing on the algae that is growing on the rock and they would also be wearing away a small amount of rock at the same time.

You should put some driftwood in the tank for them so it helps with their digestion.

Increase the lighting time on the tank to encourage algae to grow on the glass and ornaments. Then the catfish can feed on that instead of trying to digest lime.

 

[PheonixKingZ]

plecos eat wood right?

They will slowly eat the food fiber, which helps the, digest food. It’s necessary for a Pleco owner to have driftwood in the tank.

 

[Sgooosh]

They will slowly eat the food fiber, which helps the, digest food. It’s necessary for a Pleco owner to have driftwood in the tank.

beaver fish?

 

[Colin_T]

beaver fish?

yeah, pretty much