Random shrimp deaths in mature tank

[spyder]

As far as nitrates are concerned, i believe there is no specific figure but i would imagine above 40ppm or anything considered excessive. EI dosing wouldnt be recommended in any shrimp setup as without doubt that if it wasnt killing the shrimp it would stop them breeding.

Many people are having success with co2 injection and EI and have healthy shrimp colonies. There have been threads about this in the past when it seemed the majority thought nothing of nitrate's and shrimp. I'm sure it was Clive that asked, "what does a nitrate stressed shrimp look like?"

As normally shrimp with co2 injections as a rule are detrimental to shrimp breeding as they normally prefer well oxgenated water.

I think you are getting confused. I would of thought a co2 enriched planted tank will most likely have a higher oxygen saturation than one that isn't. Just because the water is saturated with co2, this has no bearing on it's ability to hold oxygen. It's quite possible and maybe expected, to have higher oxygen saturation with co2 injection than without it.

 

[Nathaniel Whiteside]

What were the Shrimp in question spyder? as regarding high nitrates I was pointing more toward Crystal red shrimp than RCS if Im honest. I dose pressurised Co2 and Ferts into one of my tanks and they do breed but only seem to hold maybe 5-10 eggs as oppose to my low tech tank where they hold in excess of 30 maybe even 50.

So talking from personal experience, I am stating what I know based on what I have found. Maybe Im one in a million.

Sorry I seem to have worded the Co2 and oxygen statement, not going into enough detail on the matter.
What I meant to state was that in a Planted aquarium, where the ideal is to keep Co2 at the optimum level, some keep oxygenation to a minimum, eg. low surface agitation and no Airstone. Basically to maintain the Co2 levels.

I was trying to highlight the fact I heard that for successful breeding you need to ensure that oxygen content is at a good level.

Im trying to offer some ideas as to why this has occurred spyder, not claiming I know everything about shrimp because in the grand scheme of things I know very little.

Regards

 

[Nathaniel Whiteside]

Oh btw spyder, Fantastic looking Rio. Loving the Stauro carpet.

 

[spyder]

What I meant to state was that in a Planted aquarium, where the ideal is to keep Co2 at the optimum level, some keep oxygenation to a minimum, eg. low surface agitation and no Airstone. Basically to maintain the Co2 levels.

I was trying to highlight the fact I heard that for successful breeding you need to ensure that oxygen content is at a good level.

Im trying to offer some ideas as to why this has occurred spyder, not claiming I know everything about shrimp because in the grand scheme of things I know very little.

Regards

It's all good, I'm just trying to consolidate data on the whole shrimp, oxygen and nitrates scene.

Avoiding aggressive disturbance of the surface is common in planted to tanks to avoid outgassing of co2 yes but the plants should produce enough oxygen to saturate the water column. Once it's saturated with oxygen we get pearling. I was trying to point out that in most cases co2 injection could increase oxygen levels to higher levels than non co2 injected tanks, in theory.

I think I'm going to try and avoid ferting this 60l tank I'm about to clean up and evict the current inhabitants. I have no pressurised system so it'll be slow tech. Will try and avoid liquid carbon too so it looks like plenty of shade and moss.

I was talking RCS, I can't afford CRS.

Maybe if I can resist the temptation of ferting and easy carbo I may do a bit better this time if it was high nitrates. But still, bugs me how some people can do both and have stable colonies.

Oh btw spyder, Fantastic looking Rio. Loving the Stauro carpet.

Cheers. it's due a big trim and tidy up. The stauro twigs are showing signs of recovery, 2 weeks after the hard trim.

 

[Nathaniel Whiteside]

Yes, would definitely agree about the plants producing enough Oxygen if heavily planted.
But if underplanted, and dosing co2 incorrectly or excessively, i think this would present a problem.

I know for sure that a high tech planted tank with CRS is easily achievable, but getting them to breed intensively for profit, could be a a different matter.

Ive got some stauro in my MINI M and i love it. Have you tried cutting it really short at front and leave it grow longer toward the back, to flow into mid ground plants?

Regards

 

[spyder]

I've not tried growing it taller myself yet, just hacked off what I had for the 1st big major trim, I've been following and contributing to this thread. viewtopic.php?f=3&t=18388&start=60

Back on topic, just finished re doing the 60l Arc. May need to grab a few pots and some stems to finish it off on Sunday. This is my 3rd attempt now and I'm in a fizz over to fert or not to fert. I think in the past I could of been prone to overfeeding too, so will cut right back on that one. Got a tenners worth to collect on Sunday (20+ RCS). Just want to keep them alive and happy in a low maintenance planted tank.

 

[Nathaniel Whiteside]

Hey,

Its entirely up to you. You could make both work,
I would be tempted in your situation (which is kind of what I will be doing soon possibly!)to get a load of branches with a good moss of your choosing and creating a rooty type scape. Coming from one corner, with a smooth pebble substrate running into sand?

You could use moss net to tie up the moss onto all branches? And provide good cover for breeding doing this if you allow dense growth.

I hope I have made myself clear-ish

Regards

 

[spyder]

Tank is done lol.

I used a big old piece of bog wood that had Fissidens, weeping and flame on it. Been sitting in a plastic container in water in the garage over winter. Scrubbed it right back. Sure there's enough bits to get it going again. Also snagged a branchy piece of wood from a nano complete with a little fern and moss.

Will snag a pic or two over the weekend and start up a shrimpy journal.

 

[Nathaniel Whiteside]

Tank is done lol.

I used a big old piece of bog wood that had Fissidens, weeping and flame on it. Been sitting in a plastic container in water in the garage over winter. Scrubbed it right back. Sure there's enough bits to get it going again. Also snagged a branchy piece of wood from a nano complete with a little fern and moss.

Will snag a pic or two over the weekend and start up a shrimpy journal.

Ah cool

Will be looking forward to it! When you have some spare and flame, can you send me some? Will pay of course 🙂
I have a whacking bunch of Peacock moss,I could send some of that your way, along with some low tech hydrocoytle sp. japan.

Regards

 

[nduli]

I havent seeny any deaths in a while Paul but that could be because there is hardly any shrimp left in my tank!

Mike, I also live in the Manchester area (bury) and had random deaths in my mature tank from about the time you were experiencing them up until march when I tore the tank down and started again.

My ph, kh and gh were really low And having spoken to loads of guys and loads of people on specialist shrimp forums I have determined that I was missing key chemicals / solids that the shrimp need.

I started again with some hi grade sakura recently and they have bred as have the crs I bought in late march. The main thing I have done differently is use a Dry mix solution to set the params right for a shrimp tank. Head over to beeshrimp dot co dot uk and check out his gh booster......

 

[darren636]

my tank is high in gh kh etc. Cannot keep shrimp.

 

[nduli]

Doesn't have to be high just 'right'

Tds is very important if yours is too high you may need to bring down with ro water.