Hi all, I currently have a 90p (166 litre) tank about 3 weeks into a planted cycle. Using co2. I think I may have bought an underpowered filter as the flow seems very low. I have the Oase Biotherm 250 (900 litres per hour)
The co2 diffuser is opposite the outflow and the bubbles aren’t significantly spread through the tank due to low flow.
Some parts of the tank seem to have zero flow as the plants do not move at all and I’m seeing die off / melting only in these parts.
I’m thinking of getting an Oase Biotherm 600 (1250 lph) or 800 (1550 lph) instead but not sure which. In the future I may get a co2 reactor which may need more flow also.
Anyone able to advise?
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