[trick440]

Is leaning rock on your tank glass bad?

 

[antwood]

some say that it can crack it.

For me there is too much algae for that to happen...

 

[cmpenney]

I knew that algae in my tank was good for something!

Yeah. That's not bubble algae in my tank. It's airbags for the liverock.

 

[camelot]

It's best not to lean the rock on the glass. All it takes is one little crack and FLOOD!! I have a piece or two leaning on my glass, but I was Very careful to be gentle. It doesn't seem to affect anything. Most people will not have leaning rock on glass though.

 

[Fender]

I have rock touching the glass on 3 sides of the tank. As long as the structure is stable and the weight isn't on the glass (the glass is minimally supporting the rock) and you are gentle about placement you'll be fine IMO.

 

[E-quality]

I have a 30 pound rock leaning on the back side of the tank, not a problem.

 

[cmpenney]

I have lots of rocks leaning against he glass on y tan. Just make sure it's not going to tumble and fall against it. I See barebottom tanks with rock SITTING on glass all the time so I don't see why it it would be a problem.

 

[Sparty]

I have a couple smaller pieces of rock touching the glass but's it's only as support. The pieces are at the top of the structure and the majority of the weight is on the rocks. I haven't had any issues.

 

[DeepBlueReefs]

I had rock against the glass in my 72 with zero problems

 

[Turtle]

algae

I find that I get hair algae where the rock is touching the glass. Also, it makes it hard to clean the glass. You can see in from both and back on my tank.

 

[gini]

i have some rock against my back wall and all seems to be okay.

 

[antwood]

Just an FYI, I purposely leaned a rock against my glass the other day. It is covered with an encrusting gorgonia. After about 2-3 days the gonipora has attached to the glass and is starting its journey to becoming my new background..

 

[trick440]

I was asking btw because the other morning I was woke up to a loud 'crack' sound followed by rushing water. It was a weird type of crack started from the lower corner and continued to the top middle of the tank. I had rocks leaning on the glass.

Don't know if that was the cause but I would not lean much rock on the glass. It sucked way to bad.

 

[gsxspeed98]

Just a thought...sometimes the rock against the glass can hinder flow to that area and allow a buildup of crud in that area.

 

[cmpenney]

I saw what you described many years ago and it was caused by an unlevel stand. The glass just got too stressed and finally cracked.

I was asking btw because the other morning I was woke up to a loud 'crack' sound followed by rushing water. It was a weird type of crack started from the lower corner and continued to the top middle of the tank. I had rocks leaning on the glass.

Don't know if that was the cause but I would not lean much rock on the glass. It sucked way to bad.

 

[antwood]

From my BAD experience.
If a crack starts in the lower corner it means that the tank/stand is not level.

It is why I use a styrofoam underlayment.

Styrofoam is about $5 for enough to cover a tank stand.

A new 70G was $100.

 

[cmpenney]

How thick was the styro you used? I've heard people use 1" but that seems like alot to me?

 

[antwood]

I just used some 1/2 white stuff...

 

[shakyamuni]

Dont have any rock touching rock myself, but there's one place where the gap between is a tad on the narrow side. Makes it hard to clean the glass with the magnetbrush.

...and up along the internal overflow box there is some rock leaning, and as with some other posters, this has proven to be an excellent "bridge" and now I have some xenia fragments and some clove fragments "climbing" along the box, effectively growing on the wall. Kinda cool...