Very interesting..... you fill up through the sump with the pump on? Any particular reason?
Not realy for any other reason than convenience.. 🙂 I just fill the sump with the same capacity as the pump takes it out again. But it's a dc 6 -12 volt pump i can regulate the speep whit a controler. Depending on how much change, a 60% i still can keep full power and not disturb the substrate. If i go more then 60% i have to trotle the pump back a little and turn the nozlle a little till the level is high enough again. The fish love it, it's play time for them and always dive into the stream during the fill.. So it's kinda spectacle for both of us, i love to watch them take the weekly rollercoaster.
Thank you, 🙂 a paludarium is also awsome, might do that too one day... But i'm more into the open top and open air emersed growth.. 🙂
It might appear as a high power led setup but it aint.. These are high output rigid smd strips 45 watt total, the strongest i could find at the time i builded it last year. The TC420 is a simple PWM dimmer (programmable led controller). The PSU i'm using is an ATX desktop power supply. I have yet not realy looked into the facts how to correctly drive COB led units.. So i can not say if they can be driven directly from a PWM device like this. If not it probably be the same as the 1 watt or 3 watt high powered LED, which need a constant current driver. Then it is possible to connenct a constant current driver with a DC 0-10 volt dim port to the TC420.. Then you dim the PSU and not the LED itself.
But as said i'm not sure about cob leds and how they work on a pwm dimmer.. Didn't come to that yet.. Have all i need for now..