Bananalobster Posted May 10, 2014 Report Share Posted May 10, 2014 Hi there, I am setting up a 4ft mbuna tank that I'm planning on putting a lot of large heavy rocks in. The problem I'm having is deciding what to use to protect the bottom of the tank from pressure points and rock falls. I had some eggcrate type plastic that is used for keeping pebbles etc on pathways but it is 8cm thick and I don't want to make my sand substrate this deep. I was in bunnings the other day and saw some large tiles and was wondering if there are any down sides of using them on the bottom of the tank to help displace some of the rocks weight over a larger area... Any thoughts? Quote Link to comment Share on other sites More sharing options...
Ira Posted May 11, 2014 Report Share Posted May 11, 2014 Hi there, I am setting up a 4ft mbuna tank that I'm planning on putting a lot of large heavy rocks in. The problem I'm having is deciding what to use to protect the bottom of the tank from pressure points and rock falls. I had some eggcrate type plastic that is used for keeping pebbles etc on pathways but it is 8cm thick and I don't want to make my sand substrate this deep. I was in bunnings the other day and saw some large tiles and was wondering if there are any down sides of using them on the bottom of the tank to help displace some of the rocks weight over a larger area... Any thoughts? I've always used undergravel filter plates. Seems to be millions of them around. Quote Link to comment Share on other sites More sharing options...
Bananalobster Posted May 11, 2014 Author Report Share Posted May 11, 2014 How big do they make them? I'm needing somethin that covers 120cm x 45cm Quote Link to comment Share on other sites More sharing options...
Bananalobster Posted May 11, 2014 Author Report Share Posted May 11, 2014 Yikes never mind, I would have to buy about 5-6 of them which would end up being $60+ Just for plastic plates lol Quote Link to comment Share on other sites More sharing options...
Ira Posted May 11, 2014 Report Share Posted May 11, 2014 Yikes never mind, I would have to buy about 5-6 of them which would end up being $60+ Just for plastic plates lol I've never bought one, most longtime fishkeepers have stacks of them piled in the shed somewhere. Quote Link to comment Share on other sites More sharing options...
hovmoller Posted May 11, 2014 Report Share Posted May 11, 2014 1 cm sand then a layer of cheap tiles and the rocks/more sand. Quote Link to comment Share on other sites More sharing options...
si_sphinx Posted May 11, 2014 Report Share Posted May 11, 2014 Give Mulford plastics in christchurch a call. They have 1200x600 sheets of egg crate for $22ea. And they can post it to you. Quote Link to comment Share on other sites More sharing options...
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