BTA never opens up!

[Dlckwood]

Ok, this is only partially true but it is very anoying. For about a week and a half my Rose bta wont open up all the way. Could there be something wrong or does this just mean it is doing so good it doesnt have to open all the way up. Thanks
DAL:p

[Carlos]

Can you give us some tank specs?

Carlos

[Dlckwood]

40 gal
50 LSB
50 LR
nitrate 0
nitrite 0
phosphate 0
Ammonia 0
KH 120
PH 8.3
temp 78-80
4 65 watt power compacts
Emporor Filter
2 rio power heads (400 and 600)
Prizm skimmer

It love to eat and I feed every other day. Thanks
DAL:p