
Thank you for that, I think I get it now!
I am afraid as I have never used a powerhead before, I don't know anything about them. Would someone mind answering a few questions on them?
- Should they be used instead of bubble curtains? Or as well as?
Both do different things, bubble curtains aerate, powerheads circulate.
- How do you know which is best for your tank? I had a look and they only give the LPH.
LPH is litres per hour, simply select the flow for your tank. If your tank is 60L, don't go for a 6000LPH as that will be circulating your tank 100 time an hour. Depends what time of flow you want, but the average is about twice-thrice the tank volume.
- How easy are they to clean?
Very, only one moving part, the impeller.
- Is the whole thing internal (aside from the power cable of course!) and do they look bulky?
Generally no, some can be very discreet, but it is still another piece of metal and plastic that will stick out in a natural tank.
Thankyou!