I have a 360L tank with two filters. Output is rated at 1400l/h for each filter. One has an extended spray bar, so it's force into the aquarium is reduced quite a lot. The other has a nozle on the end to aim it at the surface, so again, its not that forcefull into the aquarium.
Anyway, i have been getting BGA in my aquarium which has been causing hell. It was suggested that i get two 900l/h powerheads. I previously had a 4000l/h Hydor Koralia, but sold it on when i got discus.
So got 2 of the Koralia 900l/h Nanos. BUT, i just switched one on, its at the top of my aquarium aiming slightly down, and all 4 discus went into hiding! I fed them 5 mins later, and 3 came out for food, but went straight back into hiding. Only one of them is brave enough to stay out.
So i am worried this is too much for them?! I know they like slow flowing water, but there has to be some sort of compromise! So is one too much? What about 2? Should i just give it time before switching on the second one?
Thanks!
Anyway, i have been getting BGA in my aquarium which has been causing hell. It was suggested that i get two 900l/h powerheads. I previously had a 4000l/h Hydor Koralia, but sold it on when i got discus.
So got 2 of the Koralia 900l/h Nanos. BUT, i just switched one on, its at the top of my aquarium aiming slightly down, and all 4 discus went into hiding! I fed them 5 mins later, and 3 came out for food, but went straight back into hiding. Only one of them is brave enough to stay out.
So i am worried this is too much for them?! I know they like slow flowing water, but there has to be some sort of compromise! So is one too much? What about 2? Should i just give it time before switching on the second one?
Thanks!
