Yes it's Dennerle Rio Xingu 2-22mm . ThatBloke is also correct, it's keeping some Phyllanthus fluitans away from the outlet flow for now until it's settled in some as was being blown under the surface and then getting stuck under the mosses.Very nice.
Is that Dennerle gravel? Also what is the clear tube on the surface for?
It seems pretty good value tbh! It came as a full setup for £115, though I have switched the light out for an Aqua Leddy 2 Smart plant. The 3 stage filter seems to be working well also, I didn't use the biomedia that came with the tank, I ended up putting in some Seachem Matrix from my maintank and a sachet of Purigen and a little filter floss on the inlet to capture all the finer stuff.Brilliant, thanks! My desk tank is a 25l cube I got from Aquarium Gardens and I am thinking of upgrading to a larger size. It's refreshing to see a tank available in the UK!
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