Hi Hermant, yes I agree it can get confusing when you get conflicting advice!
There are several avenues to success but I think we can only ever offer options and opinions. All tanks will need fine tuning to get the best from them.
'I think' a spray bar & a atomiser in front of the pump is a good starting point but we are not the 'planted tank police', so you can do whatever you like
🙂
If you use the mist method to start with, at least you will get an idea of how the flow & dwell time of the C02 works.
It will be easy to remove the spray bar and see how an open end return pipe works, it is impossible for us to know what will work the best, we can only offer suggestions
🙂
I have run big tanks in the past, I think you will be surprised at how much C02 you need & I doubt if you could get that 10" vessel to work as a reactor.
The pump you have bought looks promising but again it is you who will have to tell us if it works for your purpose.
Try to keep a direct and smooth return from the pump, you might get a good rate of return but anything placed in line will dramatically reduce the flow.
I use a 3 speed setting pump on my 200lt tank (as seen in my video) I use the middle setting (60w I think) & get a genuine 1300lph retuning into the sump.
That is about 6.5 x flow rate & is easily enough to power my spray bar but my pump has a high pressure type impeller & high power rating.
You will have to find out how yours performs yourself...
You may discover that injecting straight into the pump will reduce flow... I just don't know!
I have used this method to get the C02 into the sump pump many times .... a simple cut down plastic bottle......