Vexus Posted December 7, 2021 Share Posted December 7, 2021 Hello, so I'm attempting my first planted tank and I'd like to do a combination of dirt with a coarse silica sand or maybe a bonsai lava grit cap over it. The tank I'm using is a 36-gal Topfin bowfront 30.7 in L x 15.7 in W x 22.2 in H (77.9 x 39.8 x 56.3 cm). My question is how much of each substrate should I use? I know the 1 Lb to 1 gal rule, as well as adding an extra inch for planted tanks but because I'm mixing 2 substrates, I was hoping to get a more precise ratio. Any advice from someone who has done something similar or just has more knowledge in general about this would be greatly appreciated. Link to comment Share on other sites More sharing options...
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