Quote:
Originally Posted by fishingman001 145 gallon tank  how do you do water changes  |
Actually it's easy, just takes a bit more time than smaller tanks.
I use one AquaClear 110
powerhead with a prefilter case without the media inside and a 25' garden hose to remove water from the tank (dumped in the bath tub).
I use one 100' garden hose for tap water in. Add the water conditioner (e.g. Prime or Tetra AquaSafe) just before letting water in.
Since I live in the Caribbean, the difference in temperature of the water in the tank and the tap water is negligible.
During the first four to six months I performed weekly water changes of up to 50%. Since then, as the tank matured (and I upgraded substrate, plants,
driftwood, stones and claypots and also I let the rear wall of the tank alone so a slime of beneficial bacteria lives there) I moved to every other week or every three weeks.
I began with three AquaClear 110 as main filters. Today I use only two of those plus a Resun BF-200 Internal Wet/Dry Filter and a Resun submersible pump (with prefilter) feeding a 9W ViaAqua Terminator UV-C Sterilizer running at 220-250GPH.
Nitrates can go up to 25ppm (40ppm is the highest I've had). At one time I had Water Hyacinths and Water Lettuce and got consistent readings of Nitrates at zero (they needed way too much lighting and fertilization to keep up with their demands!).
I enjoy doing maintenance. I take my time. I have a more powerful pump if I am running short on time but I'm done in 40 minutes if aiming at 50% but I usually do a 25%WC every two or three weeks within 25 minutes.
Pepetj
Santo Domingo