Originally Posted by Caliban07
According to Tom bar 40 PAR uniform at substrate level is enough for beginners and veterans alike. Plants can go lower but probably not many. Sometimes I think we underestimate light. Plants do better with good amounts of it. I remember I had dwarf hairgrass under 2 T8 tubes at a depth of about 18 inches, no co2
. I didn't know about this plant at the time. It didn't grow quickly and old growth died off but it was still sprouting new shoots up from the gravel! Crazy.
I would have thought T5HO would be enough to be honest? I'm now running two of these myself with reflectors under the same depth and I'm getting good growth with co2
. Still think I need more for the hairgrass though. It will probably grow, it's just growing slow.
What problems were you having? I know that most people go straight for light when the are having problems but they completely ignore co2
. I frequent one other forum and it's the opposite. They are obsessed with carbon and attribute the majority of problems in planted tanks to inadequate and/or poor distribution of co2
Sent from my iPhone using Aquarium Advice
Yes, I thought this t5 would do better as well. I'm guessing that if I'm getting 34 par a foot down, it's going to be dismal another foot down to substrate but it is something I could test as well.
My problem is slow growth until plants get a foot high. Then they take off. Plants less than a foot high don't really get good root development or decent growth for ages.
I've noticed an improvement in running quad lights compared to dual lights.
I've been told I should swap back to LEDs and hook up the second CO2
bottle but that's all a bit too expensive at the moment.
is I would say low as well as I've only ever seen pearling on the side of the tank closest to the co2
So I'm guessing I need to lift co2
and light but not as high as before.
Or just get discus as they would be cheaper....
So summary -
Plants have poor growth until they get a foot high.
Par looks low.
is probably low as well though is my suspicion.