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I used to pipe the CO2 into my internal filter directly under the impeller, no airstone. It worked a treat, smashing up the bubbles so small they didnt really float and got mixed around the tank. The only noise was a small fizz every 10 seconds as the bubble hit the impeller. Now ive switched to...

Would it be feasible to fit a solenoid to a DIY CO2 setup? Obviously not to the tank feed, because then the bottle might explode :shock: But if you had a second tube coming from the bottle with the valve on it, it could be 'off' in the day and 'on' at night. This would allow CO2 to escape...

Im doing marine biology at Swansea, my dissertation is about mussels and their defensive interactions with dogwhelks, using a time lapse camera to watch them for hours- should be writing it up now!!! What science/course do you do? I want to work in aquatic biology, no idea how though!

Haha ive just finished running experiments for my dissertation, i've done enough triplicates to last me a lifetime! Plus my housemates would wonder where all the glasses are going! :lol: I'm applying to do a masters in aquaculture, so maybe I could do a proper experiment in culturing plants...

Thats a plan! I shall set up two identical pint glasses of lileaopsis and dose one with tesco value fizzy water every day (17p/2L :D ) and see if theres a difference. As you say, the difference may well be an algal one :mrgreen: By the way what do IME and IMHO mean? Im a bit new to all...

Thanks for the speedy replies! I have a main 'proper' tank which is planted which has a cheap tetraplant CO2 doser which i use once a day. I would not put carbonated water in there for fear on suffocating my shrimps and fish. Along my windowsill there is a glass bowl containing a big Apongeton...

Hi All, This may well be a silly question, but could I use sparkling mineral water for my plants? I know it would be hard to work out dosages, but I was thinking more of using it in my unfiltered bottles and jars of plants on my windowsill. Any reason why this wouldn't work? Would the...