Now you have got me!!!!!! i bought two sacks i think they were about $30 each, 15kg in each. I have a little left but your tank is a lot bigger. I have it pretty deep in places. Give Stone and Water world a call ,the lady there put me on to it straight way. Just make sure they have it in stock as at time their stock levels are low especially after the weekends. My Yoyos love it, actually all the fish seem to enjoy it. Still have some snails but not as many.I just need to get the plants sorted out. Might change my lights to a blue tube as the Ambulia is stringy....One day i will get it right.
