BBA at foreground only?

[winston77]

Seriously dun understand that how come BBA only happen to grow at my foreground only? My Jap Hairgrass were covered with BBAs, whereas the rest, mid ground and background are totally BBA free.

My spraybar is on the top left side of my 3ft tank, spraying towards the back glass. On the extreme right side, the blyxa has completely no BBA, but foreground, including the lapis has BBA on them.

Any advise is appreciated.

[taz_boy]

winston, i also encounted similar problems to my left foreground, BBA covering parts of my hairgrass while my right foreground which is e.tenn are healthy.

BBA is normally due to low/poor co2 level and more importantly poor flow of co2 enriched water. u gotta play around with the output of your spray bar to determine what is the best set up for ur tank.

i kanna BBA since i shifted my spray bar to the middle back, now i shifted it to the lower back to increase the flow to my foreground plants.