is yours at APC a biotope tank??

can direct me to a place where i can learn where they come from???

nothings grow fast in my tank... im thinking maybe not enough co2..
i tried to set it at 6-7bps but co2 cannot dissolve in time... but fishes are okay although there is fine co2 bubbles floating everywhere

now i set it around 4-5bps
fishes are fine of course...

have the idea to add in another set ....

whats your advise vise president of MAC..
keke