Whatever happened, didn't just kill a buuunch of stuff - it must have lysed a LOT of cells to free that much PO4 on a short time scale. Just don't see how low temp does that.
diatoms do slide around, and these are def not dinos.
A lot of us have been using the $10 toy scope from Amazon. It comes with plastic slides but you should get a small pack of glass slides. Then we do the tedious cell phone to scope for pictures. The $80 scopes are better and I think some have cell phone mounts for better pictures.
Seems prices changed since I last looked. Even Camelcamelcamel shows that but this one..
Yep. I think there's more than a couple people in here that this concept applies to.
I can't find pics or your earlier reference to them. Linky help?
everything here in the $60-90 range is great. Sturdy metal body, quality glass optics, plenty of magnification. Very similar to the discarded HS sci lab scopes I use.
Sorry, they were too small for a picture. At least with my $10 scope. I had described them as 1/20th-1/50th the size of coolia and fast moving. You described them as some type of predator due to it's fast movement. That is all I can say about it. No nutrient reduction from them, just annoying to say the least. And now they are gone lol. So if I wanted to try and get something out of the scope, I'm unable to.
Oh wow! Much cheaper from Amscope than Amazon! Nice!
You are exactly right about the flow rate being to slow, that’s why I siphon into a 35 gallon Brute first then use a small pump to return the water through the sock. Even then I have to raise the sock up so it won’t overflow.How is the flow rate through these? I got a 5 micron sock but the flow through it is too slow to be of any practical value. It takes over a minute to let the water drain through it. This would drastically increase the time it takes me to siphon out the dinos.
Also, aren't you dosing Si too? I just started myself so I'm wondering if have noticed anything yet.
Lipid bodies?!
The color variation in those samples looks a lot like what I observed in my GSP going through dosing. My NO3 shot up over night from 0 ppm to 16 - 32 ppm on my RS kit. The PO4 took over a week to register once dosing started, and I eventually had to dose 22 mL of SeaChem Phosphorus a night for my 39 total gallon system just to have something measurable the next day. I believe that means it was more PO4 limited than NO3 limited.
The PE on the GSP was improved overnight after the first night of dosing. I started both at the same time. But after about a week, I noticed the green color was slightly faded. Now that PO4 has been holding throughout a 24 hour period for over a week I am seeing the more rich green color returning to the GSP.
It looks like I went from a LN/LP to a HN/LP and finally to a HN/HP condition. It also looks like the response rate of GSP to dosing nutrients is about a week. Looking at those polyp pictures, the top ones (HN/HP) look like they have the most PE/growth and the best coloration to me. The bottom ones look browned out. Maybe we should tell people with browned out corals to check their NO3 and dose accordingly?
Completely ineffective at all unless the micron rating is at least as small as 10. I don't think floss gets that small. Check out the micron sock post I quoted above.
Update on my dinos. Weekly growth rate not as bad as it was last week. Keeping NO3 between 8 - 13 ppm on the RS kit. PO4 maxed out the ULR so backed off of dosing. Rate of NO3 seems to be increasing. Used to be able to go three days between dosing and it would only drop to 4 - 8 ppm. So I decreased testing to once every three days. But now it will bottom out. Will need to increase test rate to daily again.
Si finally arrived and I did first dose last night to try and raise it 1 ppm. Still wondering why some people like myself get dinos when I always had lots of diversity and GHA. Maybe bottoming out is more critical?
Yes now I have instaled 1800l\h pump couse it was one I already had. My tank is 30 gallon with maybe 15 galon sump.@Jolanta - Great to see you tank and corals doing so well. You mentioned you had an 1800 lph (475.5 gph) pump for yours, which is effective. What size tank do you have?
So basically, if you go down to 5 microns or less, then expect flow rates to choke off significantly.
I'm gonna say prorocentrum...
Those indentations in the front indicate it's likely this guy - prorocentrum...
versus this guy - Large Cell amphidinium - with his "tongue" - sometimes recessed and only appearing as a double-notch
I dunno if we need to up our scope recommendations or I'm going blind or what, but distinguishing those two is really hard at the level of detail in @johnsamm7 pics/vids.
Complicating it, they move in almost exactly the same way on video too. Amphidinium are a little smoother gliders, and look like they are actually going somewhere, prorocentrum look slightly more like they are lost.
Anyway, that's just for those curious as to what we're looking at for an ID.
As far as treatment for these proros - follow the standard things recommended for the thread.
Yes, I would run UV to target the small-cell guys even if it doesn't hit the Large Cell guys. In addition to your reasoning that I agree with, the small cell guys tend to be more often associated with toxins, and their removal might create opportunity for grazer populations to increase - very important vs Large Cell Amphidinium
What was their movement like? Just zipping around or spinning is circles?Sorry, they were too small for a picture. At least with my $10 scope. I had described them as 1/20th-1/50th the size of coolia and fast moving. You described them as some type of predator due to it's fast movement. That is all I can say about it. No nutrient reduction from them, just annoying to say the least. And now they are gone lol. So if I wanted to try and get something out of the scope, I'm unable to.
Now if anyone else has these with a better scope that might help.
Mostly zipping about.
Here are a couple of vids of some in my tank that fit the description. I never positively identified but believe possibly gyrodinium/gymnodinium.
I was just taking a shot based on movement and size. I have never seen any like you describe.
I estimated these to be around 10 micron based on comparisons to small cell amphidinium. The ones your mention must be very tiny.
