mushroom help

[clown-keeper99]

my mushrooms arn't growing
they have been in my tank for 2 years
i keep them under 1 15watt actinic
1 36watt "filler light"
2 55watt 50/50
any suggestions

 

[hunt]

How are your water parameters. Im having the same problem with my two mushrooms and i think its because my nitrates are to high

 

[spanko]

How old are the bulbs? Do you ever try to feed them?

 

[clown-keeper99]

I feed them kent marine invert food
and my parameters are normal