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It's been several weeks since I noticed some jelly-like whitish stuff which smells fishy inside my CO2 reactor. I kept washing it off, but it reappears after a couple of days again. Interesting thing is that it always happens around the nozzle (air stone) where CO2 bubbles enter the reactor...

How about staggering lights? Would that simply be the sum of hours, or you have to allow for some lag time till the photosynthesis kicks in?

Hey Xzap, just curious why does your KH drop? 1°/day is a helluva dip. Are you sure about this? To my knowledge, CO2 should not have any effects on KH ... It sounds like a presence of a strong acid ...

I have the same thing in my tank too, but not that pronounced. Both the particles and the foam on the surface ... Never paid too much attention to it ... Now, that you mentioned it, I would be interested in the cause too .. I have a DYI CO2 with a power reactor if this means anything ...

Thanks Malkore, I believe this is my missing part : Now that I'm starting to wrap my mind around it, I'll shoot some more questions if you don't mind ... Could you be more specific as to what is the "harmonious state"? Are there any tables to go by, or formulas ...? For instance, the tap...

I'm trying to figure out the way the CO2 calculation works, and I have my serious doubts about it. Here is the formula: CO2=3*KH*10^(7.0-pH) There is also a table based on this. It appears to me it has an empirical background, but that's OK. What bothers me is that it's based on a single point...

Thanks guys ... I'll try with increasing the generation of CO2 to the point where my reactor can not handle it any more, and of course, keeping an eye on pH. Will see what amount would that be. Currently I'm using a single 1.5lit bottle.

It's a 29g tank. I'm aware of degassing danger. Although I'm using a HOB filter, the surface agitation is minimal (next to nothing) due to a design modification on it. There is no aeration. The reactor on the other hand does not spit any bubbles out, and there is plenty of gas produced, so I...

I've never been able to achieve 30 ppm of CO2 in my tank. I have a DIY CO2 with power reactor, which I would assume is working correctly (plenty of CO2, all dissolved), and is running arround the clock. The problem in mind sits in tap water pH and KH not allowing higher concentrations of CO2...

The easiest way that comes to my mind is to take a water sample to a LFS to test it for you. Maybe a couple of them ...

Thanks Travis, Not any major issues with them. There are some long thread algae which I don't loose my sleep over because they are easy to remove mechanically. I believe they indicate excess of Fe, .. right? So, that narrows it down to NPK ... Anyhow, I did a 50% WC, and from now on, I'm...

Sorry, seems like we were posting at the same time. So that's the catch ... Thanks a lot. Out of curiosity, what's the explanation of this..?

Sorry, forgot to mention TE's. Yes, I'm adding traces as well. They are Chelated Trace Element Mix @ (7% Fe, 1.3% B, 2% Mn, 0.06% Mo, 0.4% Zn, 0.1% Cu). Would too much K affect Ca uptake, if I get it right ...?

Thanks Malkore, I think I am overdosing K, but what's "grossly"? It's @ the rate of about 2ppm/day. Every reference I have come across says there is no harm in overdosing K. No mentioning of grossly, moderate, little ...

Hi All, I need help with my plants. In the last few days leaves on some plants (ie. Hygr. Polysperma, Bacopa Car.) became shrunken, cupped or curled if you wish (see the pictures below), so I suspected the Calcium deficiency, according to what I read about it on the net (including this site)...

Greenmagi, I have replied to your PM. For some reason it's still sitting in my outbox, so I'm not sure if went off. Let me know if you don't get it.

Believe me Greenmagi, I went through all that thought process ... It's not worth. First, there is the heat dissipation problem, since the old fixture boxes are not meant to stand more heat (coolong fans, perhaps?), then there is hunting for the right ballast (for how much?), then where is the...

Of course you are not stuck with low lights .... I had that Eclipse canopy on my 29 g tank, and found that the best solution for me price/hassle vise was to replace the canopy with a glass top and then you can put on the top of it whatever you wish. 1. Purchased plastic hinge and back-masking...

How big is the tank, and how long is the stock fixture?

Thanks TG, Dave ...! Dave, your drawing is just great. Maybe, someday, someone will put something like this togheter ...

Depends on your lights. The stronger they are, the deeper it can go ... Elodea Densa takes nutrients from the water column, and uses roots only to attach itself to something. So, it doesn't really matter if you planted it or not.

I know it may sound silly, but I was wondering if there is some software around to help with laying out planted tanks. Something similar to the ones made for landscaping, where you place your plants, watch simulated growth over time, etc. All I found about aquascaping are rules, such as taller...

http://www.webspawner.com/users/fishingbaittripods/carpandcatfishf.html I grew up on Danube. I remember, it wasn't unusual local fishermen pulling out 400 pounders.

You may also take into consideration the cost of the whole setup. Tank itself is just a fraction of it ... I.e. lights (for a 6' tall ..???), pumps, sump, skimmers, filters, live rocks, substrate, fish, not to mention maintanace ... and scuba gear (lol) as someone mentioned above ...