This is exactly what my issue is/was. Would love to hear a response! My main problem is that the leaves would come out looking great but then would deteriorate when the next generation appeared. And I mean it looks EXACTLY like your pics. Are you seeing pinholes and yellowing with algae growing on the old ones if you look closely?
I think you may have misinterpreted @Seattle_Aquarist
's post .. or maybe I did. His new growth was much better AFTER he moved it to a different tank. The old stunted growth was that way BEFORE he moved it. In contrast, as I read it, your old growth is just not surviving long enough for whatever reason.
Not saying this is your case, but I went through something similar back in 2014. New growth seemingly ok, but roots would rot, the melt would chase upwards to the new growth, and the plant would float free. I even suspected my substrate was bad and was mulling a replacement. It's really hard to say what resolved it. As I did not scientifically pursue it, I can only say (you're gonna kill me
) CO2, CO2, CO2... flow, flow flow, CO2 *cough* too much light *cough* Well, something like that anyway.. and maybe a few more things happened. According to what I wrote in the journal, I got a skimmer so that I could enhance my surface agitation and gas exchange and thus, push the CO2 harder. I thought I read about lack of oxygen down in the substrate causing this melt. Like you, I was just chasing anything at that point. I think @DaveKS
pointed out possible flow issues and thickness of your substrate. Then, I read that happy plants are supposed to push oxygen out in the substrate via their roots too, so it's almost a vicious cycle once things go downhill. I also replaced my filtration with a canister. Was running a HOB and the flow patterns were just not optimal. Got different plants, finally cut down light and spent the next year slowly re-optimizing everything. Bigger reactors, lighting schedule changes (including adopting that timing I mentioned previously), and so on. You know what you might need to try? Get something real tough, like lobelia cardinalis was for me. See if it grows and just fill the tank with it. Get a taste of that success just to convince you that your tank CAN grow plants. It also sort of teaches you how to manage planting over time too. I'm rambling now. As @Discusluv
said, the more I learn, the less I know.. Well, in this case, the less I'm sure about anything. But anyway, I DID manage to stumble out of it without replacing my substrate ...
Originally Posted by TheLordOfTheFish
Sorry hijacking this with a satellite pro plus question. How do you run it for 4h at 100% and then the rest at lower "speed?" All I can do is set a % and then do the 15 minutes warm up/sundown thing with the controller that came with it.
There is only two modes for this light. Daylight and night time. You set both of those levels first and then simply set the timer for when you want the light to come on (to daylight) and then off (to night time).
Very observant of you, @TheLordOfTheFish
, to notice that wrinkle
is right, as it comes from the factory, that's all you can do. I suppose you can try to get a second unit and set it at a different light level and time it on a different cycle. Much like how the T5HO guys do it. However, because we live in the 21st century, people come up with projects like this: iAqua Lite Ecoxotic E-Series cross fading controller
Of course, you may probably have trouble finding the parts that this thread refers to nowadays, but if you're savvy with this sort of stuff, it'd be no sweat to substitute what you need or even come up with something yourself based on the idea. In a nutshell, someone created an IR blaster type controller out of an arduino. Found the proper IR codes to send to the ecoxotic/satellites (minor code difference) and programmed whatever timing they want. Guys are creating new ones with raspberry pis and what not. Web driven too nowadays! I am not that savvy. I don't know what I'll do when my controller gives up. Maybe I'll have to find a new fixture that does do all that. Or bite the bullet and chase down a new project.