I have two questions for all you fishy experts out there...
1:
Has any one got any DIY Wavemaker/Tidal surge simulator type of thing plans, for making a timed powerhead/pump switching mechanism.
I will be using 240v, but I'm sure I could get the general idea from a 110v machine.
Any plans or ideas would be greatfully received...
2:
What size pump is generally suggested for wet/dry filter systems?
Is there a genral rule such as a certain number of tankfuls per hour, or something like that.
I currently have a 3 foot aqaurium and am hoping maybe to get something larger later (maybe 6 foot) should I buy a larger pump now to accomodate my later wants, or is too much water flow not good (I can't see why it might be)?
Thanks for any help with either of these questions...