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In have very soft water and, in addition to adding MgSO4 as part of EI macros, I add about 3/4 tsp GH booster at each water change (tank volume 300 litres). It's the GH booster that Aquaessentials used to sell and isn't very soluble (which is not a criticism of AE). Is something like Seachem...

What are your thoughts? Assuming CO2 is not on 24x7, which I know some people do. An hour before lights on? Two hours? Same deal before lights off?

I'm going to redo my girlfriend's tank in a couple of weeks; partly to replace the Tetra Complete substrate, which is all over the place, and partly to clear out a moderate BGA infestation. I'm going to add pressurised CO2, decent substrate (probably EcoComplete), plant heavily, improve the...

I've just taken delivery of my new Rhinox ceramic diffuser. Impeccable service from AE as usual :). Is there anything I need to do to this before it goes in the tank? And are there any tips for locating it - depth, flow over it, etc.?

I have a CO2 reactor that looks like this ... I'm struggling to get my CO2 levels up and I'm not sure if it's the way I've got the reactor set up or insufficient flow around the tank. I've got large bubbles rattling around at the top of the reactor (B) and a big blob of CO2 in the bottom...

Hi :) After a few bouts of algae, and largely thanks to great information and links on here, I'm completely sold on the whole idea of proper plant fertilisation. The tank in question has been set up from about November last year - Rio 300 (standard 2x54W T5 with reflectors). It was all going...