Substrate clumping

[Aquattro]

Originally Posted by Marlin65

How deep is your sand anything less than three inches is useless especially if it is larger grains.

Useless in what context?

[Marlin65]

Originally Posted by Aquattro

Useless in what context?

For NO3 reduction you need a min of 3" anything less will just turn into a nutrient sink.

[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