Carol Darnell wanted source for cheap laterite. Call 1-800-323-0212 and
ask for Chuck. Order red art clay. (this is the A.R.T. company and they
sell pottery material. Cost is $11 for a 50# bag plus $5 minimum order
shipping costs. They sell smaller quantity but $5 minimum applies to
orders under $30. In a post arount Aug 19 it was suggested somebody take
up the challenge and remarket/repackage/resell the stuff to those
interested on the list. No takers.
Tom Price asked layer setup. In the big tank it looks like this.
--------gravel (2/3 of total substrate depth) 3-4"
--------egg crate to keep from sucking up laterite in vacuuming
--------laterite/gravel mix, in my case about 30# laterite with 60+
pounds of gravel.
--------under gravel heater (either wires or pvc)
No under gravel filter plate is used with the laterite and is not
recommended due to too high a flow rate and resultant clouding.
As mentioned in previous post, anybody using laterite powder should mix
only enough water with gravel/laterite to get the laterite to stick to
the gravel. If you have too much water it will put enough laterite in
suspension as a fine mud to disperse through the tank. By keeping the
mix fairly dry you will get minimal if any clouding when you SLOWLY fill
the tank. If you do get clouding it will go away in time.