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i have never owned one of those nano systems but i do not see it would be an issue, you could always drop an email to Tropica to confirm.

https://www.amazon.co.uk/Magnetic-Solenoid-Aquarium-System-Regulator/dp/B01M2A2WQM/ref=pd_lpo_sbs_199_t_2?_encoding=UTF8&psc=1&refRID=6VZS9SGM282568EP93F0

yes it will fit all standard bottles and FE's

Just a quick update, i fitted the new reg today, very well made indeed, i have set it to 2.5 bar and as suggested it has cured the problem of an inconsistant bubble rate with the inline diffusor, i will obviously keep a close eye on it over the next few days, but so far i would have to say...

i have just upgrade my reg to this UP Twin Gauge Adjustable CO2 Regulator - Solenoid - Needle Valve (A-165) so ican raise the pressure to 2..5 bar it should arrive tomorrow, i will let you know how it goes:)

i'm probably going to go for this one UP Twin Gauge Adjustable CO2 Regulator - Solenoid - Needle Valve (A-165) What do you think? :thumbup: or :thumbdown:

i might try it briefly without the check valve tomorrow just to eliminate that possibility

the only thing changed was the diffuser and it was stable before that:banghead:

2kg FE and it's attached to tetratec1200

wondering if could be caused by some sort of back pressure? i suppose i could put my old ceramic diffusor back on and see if the problem continues:banghead:

After installing a UP CO2 Inline Diffuser on one of my tanks yesterday i seem to be having a problem controling the co2 via the needle valve, it goes from a steady flow of bubbles in the bubble counter for a few seconds followed by a big burst of bubbles and then back again, the diffusor has...

Looks like pure CO2 to me, just pull off that plastic cap and attach your regulator there

Do you have your UP on the outflow of your filter or the intake?

I suppose all we can do is point them to resources like UKAPS and hope they get educated :thumbup:

JBL instructions use to say this too but it's very misleading, tank water will never give you a true reading of your CO2 levels unless you happen to have 4dkh tank water of course, not the first case of manafacturers giving false or misleading instructions when it comes to planted tanks i'm...

Sorry i meant what are you mixing with the bromo blue? i seem to remember JBL instructions tell you to mix it with tank water :roll: if this is the case you will not be getting a true reading, you need to mix it with 4DKH water to see the true CO2 levels.

what are you filling your dropchecker with?

Try removing your 2 check valves one by one to see if one of them has stuck closed

Check Here Pete http://www.aquaessentials.co.uk/ae-design-clear-co2-tubing-per-metre-p-2095.html

Just a thought, are you using a check valve? and is it the right way round? if not than nothing will get through.

I have used JBL and Aqua Medic regulators and would recommend either but there are cheaper alternatives around :thumbup:

I havn't used the colombo version but i would say you definitely need the 4dkh solution :thumbup:

Sounds OK to me :thumbup:

Have a read of these mate it should make things clearer :thumbup: http://www.ukaps.org/forum/viewtopic.php?f=34&t=266 http://ukaps.org/forum/viewtopic.php?f=37&t=7776

Not sure about that one i'm afraid, it says it's 3 bar, ideally you need one set to 1.5bar and with a needle valve for fine adjustment.

i have just a few seconds ago ordered this one http://www.swelluk.com/aquarium/co2-and-planting-equipment-32/pressure-gauges-196/aqua-medic-regular-pressure-regulator-85.html I have a JBL one that is very good as well and it's always worth checking ebay :wink:

Have a look at this... http://ukaps.org/forum/viewtopic.php?f=37&t=5529&p=61204&hilit=4dkh#p61204

:oops: yes of course 1 bubble per second, i type faster than i think sometimes, sorry :roll:

Hi Glank, yes it is quite normal to see tiny bubbles of co2 wizzing aroung your tank :crazy: i'm not clear by what you mean by "visual test" are you using a drop checker with 4dkh water or a PH test kit? i have a tank about the same size witch is running at 1 bpm but no 2 tanks are alike...

I had you down as a Pomerol man :wink:

i have 2 JBL regs working fine on 2kg FE's and iv'e never needed to modify them :?

Good price too :D got to be worth a try :)

Not sure about the mierals but i'm sure they would love the Co2 :D Very expensive though :shock: I believe Amano used to do it :)

123..Altogether Now... :lol:

I suspect you have a leak, even a 500g bottle should last longer than that :shock: Check all your connections for leaks, if not you may have a faulty regulator.

MMMmmm inline Cal Aqua... nice! Maybe if we are all good Father Christmas will bring us one, until then my Rhinox 5000 is under the spray bar. Thanks all

I'm about to add a JBL CO2 system to my tank and was wondering what the current thinking was on diffuser placement, i was going to stick it under the filter intake but is likely to interfear with the anarobic bacteria in the filter medium in any way? i'm now thinking it may be better to put it...