flow

Do plants prefare amonia, nitraten nitrite or pure nitrogen? EG would the plants benifit more if I used a filter media that turnes nitrates into pure nitrogen that can eb consumed or gassed off?

Hi all, I can't seem to find anywhere in the UK that sell those spiral.style glass inlet pipes that slow flow down. Any ideas?

For better co2 distribution in my tank I'm looking for a small pump for some extra flow. It needs to be as small as possible so I can hide it behind some driftwood. I also considered buying an active skimmer but these are all too big. Eheim has some nice small pumps but I read something about...

Hi, Quite many sources say that Apistogrammas should not have a strong water flow in the tank. How slow is a not-strong flow? Never had Apistos earlier, so I don't have any experience on this topic.

Hi, After reading on the forums about light periods i decided to shorten my light period to 8 hrs a day from 10 and after everything looking ok now on the second week i have started to notice brown spotty/dusty algae on the tips of older leaves!!! Oh no!....should i just increase the light...

I am thinking of replacing the Eheim skimmer in my 175L Eheim Proxima (70x50x50cm) with a power head, but I am unsure about the l/h I need. I used to have surface scum and got used to running the skimmer 24/7, so I don't even know if it would be there. Anyway, hoping that scum wouldn't be an...

Hello my name is Jorge, actually i am a week old in this hobby and fish keeping all together For my tank im not looking to emmulate any particular style im just going freestyle hope it works I have a 65 gal tank, with a aquatop CF400-UV i have no idea what the flow rate is (all i know is that...

Hello my name is Jorge, actually i am a week old in this hobby and fish keeping all together For my tank im not looking to emmulate any particular style im just going freestyle hope it works I have a 65 gal tank, with a aquatop CF400-UV i have no idea what the flow rate is (all i know is that...

Hi all, I am running a tank with a footprint of 135 x 40 (~180L) on a 2000lph filter, using a long 120 diy spray bar at the back of the tank. I feel its about time for a rescape and hope that I learned a thing or two as to seak a better flow in this tank. I came across Jebao cp-40 (or...

So I have read the sticky about flow and lots of other info but I am not sure if I have an issue or not. I have an Eheim 2217 filtering my Juwel Rio 180 with the dark grey installation kits. I had the spray bar across the back pointing slightly up at the surface which I believe should create...

Hello Guys, Still running the Dennerle Scapers tank with the Fluval 306 and Gush Lily Pipes (Inlet & Outlet) and I think I am still getting flow issues. I am getting what I believe is Black-brush algae growing around some areas of the wood mostly the back. This is really starting to put a...

I'm constantly being confused by the terms "flow" & "turnover" for a planted tank. Can some kind sole explain in a easy to understand manner. Thanks.

Hi guys, I want to know if the stated flow ( litres per hour ) for Eheim external canisters are anywhere near the actual flow. I have asked a few friends working in LFS and I was informed that Eheim filters can be trusted with the stated flow and that they actually test the flow with media...

Hi guys,:) Need your advice / input for my planted tank. I have read many posts here where having the spray bar length wise, especially for big tanks (pointing back to front of tank) creates: 1. Better flow in the tank 2. More efficient distribution of nutrients to plants. 3. More efficient...

Hi all, First of all: I realize that the question I'm about to ask has been asked before and I've done some reading already. But I wanted to ask your advise on my specific situation. At the moment, I'm running my 240L tank on a JBL e901 greenline filter which does 900l/hr. I am adding CO2...

Hi All, Just wanted some advice on my setup for flow. Please excuse the digram. So, number 1 is the current position of my filter inlet and outlet. Number 2 is the position of my Hydor. Would there be a better position to move things? I was thinking of moving the hydor to position 3 or 4...

Ok, so today was the day of reckoning! After weeks of cycling my new filter...the tank was ready to put some fish and shrimp BUT. I've immediately hit a stumbling block and would massively appreciate it if anyone can help me out! I'm running a 64l interpet fishbox with a fluval 106 external...

Ok, so today was the day of reckoning! After weeks of cycling my new filter...the tank was ready to put some fish and shrimp BUT. I've immediately hit a stumbling block and would massively appreciate it if anyone can help me out! I'm running a 64l interpet fishbox with a fluval 106 external...

Hi and thanks for reading this post. Background I started this hobby 2 years ago and got my first ever tank and Rio 180l after getting over my desire to have a BiOrb. Since then I have learned a lot from the great people on this forum and 1 year later I added a Nano CRS tank which this too...

Ok was down the LFS getting a replacement CO2 diffuser(what a pigging nightmare that was) and I spotted the Hydor things and thought that they seemed relatively cheap and splashed the cash and bought one. I get it home and get it out of the box and was a little dismayed at how big the unit is...

Hi there, Firstly, thanks for this great resource these forums are full of helpful information and feedback. I have already managed to find answers to most of my questions and feel like I am developing a good knowledge of the subject, albeit without much testing on the crucible of 'actually...

I'm using the spray-bar vertically placed in my 60x30x35cm tank and the filter I'm using is a TetraTec EX600 (600l/h)...... (is it better to convert my measurement units to UK units??)... There is a good flow to the other side of the tank where the flow from the spray-bar clashes to the...

I know this subject has been covered greatly on here but after measuring the diameters of various components I have some queries. After recently purchasing an APS 2000 external filter I discovered that although the hose id is 18mm, the spraybar right angle piece id is only 10mm with the main bar...