Hi Ady, I did think about putting 2 900's either side of the bar I can an get 2 on eBay for £50. Is that not too much flow though. When do you use them, constantly or only when the Co2's running?
I do have an old Eheim canister filter in the shed. It's a 2213 with a 620 l/h output. Would this be enough flow. And what about introducing another new filter at this stage, would that not mess around with the levels of ammonia/ nitrite. Also been thinking of getting some shrimp and otto's to help with the diatoms algae. I've read that you should get Caridina Japonica, but I've only heard of people getting Caridna Multidentata (amino). Which ones are more suitable. Still a learning curve
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