when culling rilis

[ineke]

I have always pictured having perspex steps along the back wall of my tank so it would be similar to

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then i would have mosses attached to tiles or whatever on the steps more light demanding the higher the step :)

i thought about that but was worried about dead space under the Perspex I thought to give the sponge a go first to see if it works but also because it will eventually allow the water through it.