my frogspawn and wellso are slowly receding. any thoughts for reason why? i am using a aqualight 6 bulb 48" t5
perams
alk-12
cal-550
mag-1400
ph-8
nitrates-1ppm
amm-0
trites-o
perams
alk-12
cal-550
mag-1400
ph-8
nitrates-1ppm
amm-0
trites-o