Fish only 1.5ft tank

[bawater]

Tanzy's right, 1 or up to 4 fans will evaporate ur tank(not to mention salt creep)- how much?

roughly with a fan on 24/7 u should see a drop of water level about 1cm. what this measures too?- most probably salinity from an original 1.022 to 1.026 after evaporation within a day. (although it will be gradual & most fishes can tolerate it- but when u top up- it will shoot back down immediately & that shortens the fishes lifespan)

This was noted in my 2fts. Another thing to watch is PH, in smaller aquaria PH levels drop rather fast because u tend to overstock- * just use a buffer to keep it up.

If u go with using a hang on- just becareful with the splashes & bubbles produced by hang-ons . salt water is nearly 50 times more conductive to electricity than freshwater. Remember that your lights will be there.

It can be done- just that u need to know of the problems to overcome or prevent them.

Small tanks Fish only are indeed simple- just don't overstock. If u say 4 fish, keep it at 4 fish- don't give in to the just one more syndrome(& crabs/shrimps also count as fish Headcount)

[BlueTerror]

Okie , i got this italymade hangon filter. It is real quiet. No splashes whatever.

One question is, it has a air valve switch. When i switch it on, i hear and see splashes in the bio place of the filter. Should i leave it on? It's kinda noisy too. As long there is surface agitation, there shld be no need for extra air rite?

[Tanzy]

If you are really hardcore or bored try Evaporation Calculator.

Then you will know the change in salinity.