I'm having an issue with my 55 gallon soil-based tank. It has a sand cap, and once in a while I see bubbles come out of the sand. But in the back corner I'm having a big issue with this. I don't know if it's because I built up the soil higher back there (therefore more soil to create more gas bubbles), but I see huge bubbles come out from back there and the soil keeps coming exposed. I poured a bunch more sand on top of it, but it happened again. It's like it's erupting and the soil comes up with the bubbles and then covers up the sand. It's super squishy back there and some of my myrio comes uprooted and when I try to put it back in, I have to try to pack the soil around it and more bubbles will come up and the soil gets all unsettled and all of these gross pieces of bark and stuff litter the sand in other parts of the tank.
Was my sand not thick enough, maybe? It's hard to put down more sand when the tank is full, though, because it just pushes a lot of the soil out of the way rather than getting packed on top of it.
Has anyone else had this problem?
I do have 3 MTS in there and I see 2 of them every once in a while. I don't know if they're what's causing the bubbles to come up (because I know that's what they do)... idk
Anyone else ever have this "eruption" problem in their soil-based tank?