Having trouble growing cheato need help. Here are my water parameters PH-8.0 Temp-74 SG-1.024 Ammonia-0ppm nitrite-0ppm nitrates 20ppm. This is a 75 gallon fowlr setup thats been going for just over a year. Everything has been great no problems with the tank I just cant get the cheato to grow. I have had the cheato in the sump for 6 months with little to no change with a 100watt plant light. Any help would be great thanks.

