What substrate?

I want to know what substrates you have in your tanks

sand in all of them.

In my 10g I have just sand
My 20g I have gravel. I will be changing to sand soon
In my 75g I have 1/4" of boiled potting soil mixed with laterite and topped with sand. Excellent mix for plants.

Sand in all of mine. This is great for African cichlids. Since we have rock hard water here in AZ.

MIKEJ0226 wrote:

Sand in all of mine. This is great for African cichlids. Since we have rock hard water here in AZ.

I have sand in half and gravel in the other half

my 10 gallon lightly planted i have natural gravel, soilmaster select, and flourite. in my 20 long i have black flourite and red color quartz, in my 55 i have beige soilmaster select and black colorquartz, in my 75 i have argonite.

I have gravel, I am wondering is sand lighter than gravel?

i do not know if sand is lighter then gravel it is just smaller. Some fish like sand because they can dig in it. If you use sand make sure you wash it very very good first

I would guess its lighter. Here's the reasoning behind it. 1 sq ft of sand is more dense that 1 sq ft of gravel that has air/water gaps all through it.

That's what I meant. I just forgot the noun in the first sentence.

I would guess gravel is lighter.