I vividly remember the first grow old I set in the works a 55-gallon tank. I walked into the local pet store, full of hubris and a slightly too-large coffee. I grabbed three bags of up to standard river stones. I thought, Yeah, this looks practically right. It wasn't. It in point of fact wasn't. By the times I got home and rinsed the dust out, I had barely covered the glass. It looked when a desolate moonscape, not the lush Amazonian paradise I had promised my well ahead tetras. past then, Ive realized that guessing is for losersor at least for people who like making three trips to the store in one afternoon. You obsession an aquarium calculator substrate calculator that actually accounts for reality, not just some distracted "rule of thumb" scribbled on a napkin.

Lets get real for a second. Most people will say you the tolerable "one pound of gravel per gallon" rule. Im here to tell you that decide is truly garbage. Why? Because a 20-gallon "long" tank has a unconditionally exchange footprint than a 20-gallon "high" tank. Volume doesn't breathing on the floor; surface place does. If you desire to know what amount of gravel pull off you actually need, you have to end thinking roughly gallons and begin thinking just about square inches and depth goals. Its basic geometry, even if we all hated math in high school.