Substrate clumping

[Aquattro]

I'll start a different thread on depth later on

[Marlin65]

I take it you don't agree.

[Aquattro]

Originally Posted by Marlin65

I take it you don't agree.

Well, yes and no. Kinda. The thing is, I don't think you need sand at all, and if you use it, is 2 inches bad where 4 inches is good? If so, why? If not, why not? Don't worry, we'll get our own thread going

[i have crabs]

is it loose clumping or hard clumping? loose clumping is usually from sticky biofilms from excess dissolved organics,hard clumps is usually calcium carbonate binding

[marie]

Originally Posted by i have crabs

is it loose clumping or hard clumping? loose clumping is usually from sticky biofilms from excess dissolved organics,hard clumps is usually calcium carbonate binding

Another good way to tell why its clumping is to put the clump into some bleach water, if it falls apart its excessive organics if vinegar is the only thing that breaks it apart its calcium

[littlesilvermax]

If it is precipitated calcium, then 10 bucks says your magnesium is less then 1300 ppm.

What are your calcium, alkalinity, and magneisum levels?

[untamed]

Are you using Kalk to support Ca/Alk? That clumping can easily occur with heavy Kalk dosing.