BBA breakout

[roark]

I used to only dose Lushgro aqua after weekly water change of 30% and had burnt patches on my moss. Was adviced to dose KNO3 and PO4 and to do them on alternate days and performing 50% water change weekly. Riccia is growing faster than ever but BBA started appearing On first my java moss( quite a lot on these) and some spotted on my taiwan moss as well. Shifted my taiwan moss to my shrimp tank and the cherry shrimps to my amazement attack the BBA and left them BBA-less after an hour or so Will probably do the same for my java moss but would like to find out what's causing this outbreak as I've never had problems with algae except for spot algae on my tank walls.


Tank Age : about half a year
Tank : 60 x 30 x 21(cm)
Light : 55w pl (for 10-12 hours daily)
Co2 : DIY dispense through flipper
Flitration : eden 316 + resun internal
Substrate : Jbl base fert with normal gravel on top
Temperature : 24-27 degree celcius
Ph : 6-6.5
Kh : 5
Fertilisation : KNO3, KH2PO4,Lushgro Aqua (on alternate days)

Fishload:

7 cherry barbs, 3 Corydora sterbai, 4 Corydora habrosus, 1 molly, 2 SAEs, 2 Otos, 6-8 yamatos.


Appreciate and advice and help!
Thanks

[Plantbrain]

CO2, CO2 and CO2.

DIY CO2 and a pH of 6-6.5 is an awful wide range, you need something that can test to 0.2pH units and make sure that the CO2 is actually 20-30ppm whuile the lights are on for the entire time.

You need to measure the am and pm pH's right before the light go off.
You also need to make sure the daily differences are adequate also as DIY CO2 declines with time during the week.

Use two bottles of brew and alternate changing them each week etc.
You need to stay on top of the CO2.

Regards,
Tom Barr